Pathologic Function

MeSH ID: T046

Related Concepts:

  • Abortion Failure [M0000045]
  • Abscess [M0000059]
    Accumulation of purulent material in tissues, organs, or circumscribed spaces, usually associated with signs of infection.
  • Acantholysis [M0000077]
    Separation of the prickle cells of the stratum spinosum of the epidermis, resulting in atrophy of the prickle cell layer. It is seen in diseases such as pemphigus vulgaris (see PEMPHIGUS) and KERATOSIS FOLLICULARIS.
  • Achlorhydria [M0000200]
    A lack of HYDROCHLORIC ACID in GASTRIC JUICE despite stimulation of gastric secretion.
  • Acid-Base Imbalance [M0000212]
    Disturbances in the ACID-BASE EQUILIBRIUM of the body.
  • Acidosis [M0000213]
    A pathologic condition resulting from accumulation of acid or depletion of the alkaline reserve (bicarbonate) content of the blood and body tissues, and characterized by an increase in hydrogen ion concentration (decrease in pH). (Dorland, 27th ed)
  • Acute-Phase Reaction [M0000325]
    An early local inflammatory reaction to insult or injury that consists of fever, an increase in inflammatory humoral factors, and an increased synthesis by hepatocytes of a number of proteins or glycoproteins usually found in the plasma.
  • Adenitis [M0012782]
  • Adenoma, Prostatic [M0017832]
  • adverse effects [M0030213]
    Used with drugs, chemicals, or biological agents in accepted dosage - or with physical agents or manufactured products in normal usage - when intended for diagnostic, therapeutic, prophylactic, or anesthetic purposes. It is used also for adverse effects or complications of diagnostic, therapeutic, prophylactic, anesthetic, surgical, or other procedures, but excludes contraindications for which "contraindications" is used.
  • Aerophagy [M0000512]
    Spasmodic swallowing of air.
  • Aging, Premature [M0029089]
    Changes in the organism associated with senescence, occurring at an accelerated rate.
  • Alkalosis, Respiratory [M0000715]
    A state due to excess loss of carbon dioxide from the body. (Dorland, 27th ed)
  • Allergic Reaction [M0010852]
  • Androgenization [M0468029]
  • Angioneurotic Edema [M0001197]
    Recurring attacks of transient edema suddenly appearing in areas of the skin or mucous membranes and occasionally of the viscera, often associated with dermatographism, urticaria, erythema, and purpura.
  • Anoxia [M0001284]
    Clinical manifestation of respiratory distress consisting of a relatively complete absence of oxygen.
  • Anoxia, Brain [M0335359]
  • Anoxic Brain Damage [M0335362]
  • Apnea [M0001589]
    A transient absence of spontaneous respiration.
  • Arrhythmia [M0001715]
    Any variation from the normal rhythm or rate of the heart beat.
  • Arteriolosclerosis [M0356224]
    Thickening of the walls of small ARTERIES or ARTERIOLES due to cell proliferation or HYALINE deposition.
  • Arteriosclerosis [M0001734]
    Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.
  • Arteriovenous Fistula [M0001737]
    An abnormal communication between an artery and a vein.
  • Aschoff Bodies [M0019012]
  • Ascites [M0001791]
    Accumulation or retention of free fluid within the peritoneal cavity.
  • Aseptic Necrosis of Femur Head [M0008322]
  • Asphyxia [M0001859]
    A pathological condition caused by lack of oxygen, manifested in impending or actual cessation of life.
  • associated conditions [M0030335]
  • associated disease [M0030336]
  • Astrocytosis [M0393306]
  • Atelectasis [M0001899]
  • Atherogenesis [M0474727]
  • Atherosclerosis [M0001903]
    Thickening and loss of elasticity of the walls of medium and large muscular ARTERIES with lesions in the innermost layer of the artery (ARTERIAL INTIMA). This disease process of atherogenesis includes the retention of cholesterol-rich LIPOPROTEINS and their binding to PROTEOGLYCANS in the arterial intima, generation of proinflammatory molecules that recruit MACROPHAGES to the subendothelial space, formation of FOAM CELLS, and eventual calcification of the arterial wall. These arterial plaques (atheromas) contain CARBOHYDRATES; BLOOD; and CALCIUM.
  • Atrial Fibrillation [M0001926]
    Disorder of cardiac rhythm characterized by rapid, irregular atrial impulses and ineffective atrial contractions.
  • Atrial Flutter [M0001927]
    Rapid, irregular atrial contractions due to an abnormality of atrial excitation.
  • Atrophy [M0001929]
    Decrease in the size of a cell, tissue, organ, or multiple organs, associated with a variety of pathological conditions such as abnormal cellular changes, ischemia, malnutrition, or hormonal changes.
  • Attention Deficit and Disruptive Behavior Disorders [M0029636]
  • Autoimmune Response [M0023918]
  • Autoimmunity [M0023919]
    Process whereby the immune system reacts against the body's own tissues. Autoimmunity may produce or be caused by AUTOIMMUNE DISEASES.
  • Autolysis [M0001990]
    The spontaneous disintegration of tissues or cells by the action of their own autogenous enzymes.
  • Basal Ganglia Hemorrhage [M0328154]
    Extravasation of blood into a basal ganglia nucleus (e.g., caudate, globus pallidus, amygdala, putamen, and claustrum). Clinical manifestations may include acute hemiparesis, movement disorders, headache and/or alterations of consciousness. Hypertension and vascular malformations are relatively common causes of this condition. Pathologically, these hemorrhages are associated with lipohyalinosis of small blood vessels and Charcot-Bouchard microaneurysm formation. (Adams et al., Principles of Neurology, 6th ed, p836)
  • Benign Prostatic Hyperplasia [M0489822]
    A disease caused by hyperplastic process of non-transformed prostatic cells.
  • Biliary Fistula [M0002489]
    Abnormal passage in any organ of the biliary tract or between biliary organs and other organs.
  • Blastocyst Disintegration [M0002642]
  • Blood Loss, Surgical [M0024551]
    Loss of blood during a surgical procedure.
  • Bone Malalignment [M0026847]
    Displacement of bones out of line in relation to joints. It may be congenital or traumatic in origin.
  • Bradycardia [M0002863]
    Excessive slowness in the action of the heart, usually with a heart rate below 60 beats per minute.
  • Brain Death [M0002873]
    A state of prolonged irreversible cessation of all brain activity, including lower brain stem function with the complete absence of voluntary movements, responses to stimuli, brain stem reflexes, and spontaneous respirations. Reversible conditions which mimic this clinical state (e.g., sedative overdose, hypothermia, etc.) are excluded prior to making the determination of brain death. (From Adams et al., Principles of Neurology, 6th ed, pp348-9)
  • Brain Edema [M0002876]
    Increased intracellular or extracellular fluid in brain tissue. Cytotoxic brain edema (swelling due to increased intracellular fluid) is indicative of a disturbance in cell metabolism, and is commonly associated with hypoxic or ischemic injuries (see HYPOXIA, BRAIN). An increase in extracellular fluid may be caused by increased brain capillary permeability (vasogenic edema), an osmotic gradient, local blockages in interstitial fluid pathways, or by obstruction of CSF flow (e.g., obstructive HYDROCEPHALUS). (From Childs Nerv Syst 1992 Sep; 8(6):301-6)
  • Brain Hemorrhage [M0332724]
  • Brain Injury, Hypoxic [M0335363]
  • Brain Injury, Ischemic [M0334223]
  • Bundle-Branch Block [M0003027]
    A form of heart block in which one ventricle is excited before the other because of absence of conduction in one of the branches of the bundle of His.
  • Calculi [M0003195]
    An abnormal concretion occurring mostly in the urinary and biliary tracts, usually composed of mineral salts. Also called stones.
  • Cardiac Death [M0005704]
  • Cardiac Hypertrophy [M0453089]
    Enlargement of the HEART due to chamber HYPERTROPHY, an increase in wall thickness without an increase in the number of cells (MYOCYTES, CARDIAC). It is the result of increase in myocyte size, mitochondrial and myofibrillar mass, as well as changes in extracellular matrix.
  • Cardiac Output, Low [M0003453]
    A state of subnormal or depressed cardiac output, usually seen in patients with heart failure secondary to coronary artery, hypertensive, primary myocardial, valvular, or pericardial disease.
  • Cardiomegaly [M0009952]
    Enlargement of the HEART, usually indicated by a cardiothoracic ratio above 0.50. Heart enlargement may involve the right, the left, or both HEART VENTRICLES or HEART ATRIA. Cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (HEART FAILURE, CONGESTIVE) or several forms of CARDIOMYOPATHIES.
  • Cardiopulmonary Arrest [M0009939]
  • Carrier State [M0003562]
    The condition of harboring an infective organism without manifesting symptoms of infection. The organism must be readily transmissible to another susceptible host.
  • Cellulitis [M0003788]
    An acute, diffuse, and suppurative inflammation of loose connective tissue, particularly the deep subcutaneous tissues, and sometimes muscle, which is most commonly seen as a result of infection of a wound, ulcer, or other skin lesions.
  • Cerebral Anoxia [M0335358]
  • Cerebral Edema [M0002877]
  • Cerebral Hemorrhage [M0003884]
    Bleeding into a cerebral hemisphere of the brain, including lobar, subcortical white matter, and basal ganglia hemorrhages. Commonly associated conditions include HYPERTENSION; INTRACRANIAL ARTERIOSCLEROSIS; INTRACRANIAL ANEURYSM; CRANIOCEREBRAL TRAUMA; INTRACRANIAL ARTERIOVENOUS MALFORMATIONS; CEREBRAL AMYLOID ANGIOPATHY; and CEREBRAL INFARCTION.
  • Cerebral Hemorrhage, Hypertensive [M0335453]
  • Cerebral Hypoxia [M0335364]
  • Cerebral Ischemia [M0334222]
  • Cerebrovascular Disorders [M0003914]
    A broad category of disorders characterized by impairment of blood flow in the arteries and veins which supply the brain. These include CEREBRAL INFARCTION; BRAIN ISCHEMIA; HYPOXIA, BRAIN; INTRACRANIAL EMBOLISM AND THROMBOSIS; INTRACRANIAL ARTERIOVENOUS MALFORMATIONS; and VASCULITIS, CENTRAL NERVOUS SYSTEM. In common usage, the term cerebrovascular disorders is not limited to conditions that affect the cerebrum, but refers to vascular disorders of the entire brain including the DIENCEPHALON; BRAIN STEM; and CEREBELLUM.
  • chemically induced [M0030322]
    Used for biological phenomena, diseases, syndromes, congenital abnormalities, or symptoms caused by endogenous or exogenous substances.
  • Cheyne-Stokes Respiration [M0004037]
    An abnormal pattern of breathing characterized by alternating periods of apnea and deep, rapid breathing. The cycle begins with slow, shallow breaths that gradually increase in depth and rate and is then followed by a period of apnea. The period of apnea can last 5 to 30 seconds, then the cycle repeats every 45 seconds to 3 minutes.
  • Choking [M0000611]
  • Choristoma [M0004345]
    A mass of histologically normal tissue present in an abnormal location.
  • Choroid Hemorrhage [M0004349]
    Hemorrhage from the vessels of the choroid.
  • Choroidal Neovascularization [M0029921]
    A pathological process consisting of the formation of new blood vessels in the CHOROID.
  • coexistent conditions [M0030337]
  • coexistent disease [M0030338]
  • complications [M0030334]
    Used with diseases to indicate conditions that co-exist or follow, i.e., co-existing diseases, complications, or sequelae.
  • concomitant conditions [M0030339]
  • concomitant disease [M0030340]
  • congenital [M0030343]
    Used with disease headings to indicate those conditions existing at, and usually before, birth. It excludes morphologic abnormalities and birth injuries, for which "abnormalities" and "injuries" are used.
  • Constriction, Pathologic [M0005049]
    The condition of an anatomical structure's being constricted beyond normal dimensions.
  • Contracture [M0005128]
  • Corneal Neovascularization [M0025202]
    New blood vessels originating from the corneal veins and extending from the limbus into the adjacent CORNEAL STROMA. Neovascularization in the superficial and/or deep corneal stroma is a sequel to numerous inflammatory diseases of the ocular anterior segment, such as TRACHOMA, viral interstitial KERATITIS, microbial KERATOCONJUNCTIVITIS, and the immune response elicited by CORNEAL TRANSPLANTATION.
  • Cutaneous Fistula [M0026639]
    An abnormal passage or communication leading from an internal organ to the surface of the body.
  • Cytotoxic Brain Edema [M0334187]
  • Cytotoxic Cerebral Edema [M0334190]
  • Death, Sudden [M0005707]
    The abrupt cessation of all vital bodily functions, manifested by the permanent loss of total cerebral, respiratory, and cardiovascular functions.
  • Death, Sudden, Cardiac [M0025533]
    Sudden suspension of cardiac activity that is usually due to ARRHYTHMIA, in contrast to heart attack (MYOCARDIAL INFARCTION) which occurs due to blockage. The sudden suspension of cardiac activity generally requires RESUSCITATION.
  • Decerebrate State [M0005718]
    A condition characterized by abnormal posturing of the limbs that is associated with injury to the brainstem. This may occur as a clinical manifestation or induced experimentally in animals. The extensor reflexes are exaggerated leading to rigid extension of the limbs accompanied by hyperreflexia and opisthotonus. This condition is usually caused by lesions which occur in the region of the brainstem that lies between the red nuclei and the vestibular nuclei. In contrast, decorticate rigidity is characterized by flexion of the elbows and wrists with extension of the legs and feet. The causative lesion for this condition is located above the red nuclei and usually consists of diffuse cerebral damage. (From Adams et al., Principles of Neurology, 6th ed, p358)
  • Decorticate Rigidity [M0337608]
  • Decorticate State [M0337607]
  • Delayed Graft Function [M0481861]
    General dysfunction of an organ occurring immediately following its transplantation. The term most frequently refers to renal dysfunction following KIDNEY TRANSPLANTATION.
  • Delayed Postpartum Hemorrhage [M0481644]
  • Demyelination [M0005826]
  • Dental Calculus [M0005849]
    Abnormal concretion or calcified deposit that forms around the teeth or dental prostheses.
  • Dental Fistula [M0005882]
    An abnormal passage in the oral cavity on the gingiva.
  • Dental Granulomas [M0016288]
  • Dental Leakage [M0005897]
    The seepage of fluids, debris, and micro-organisms between the walls of a prepared dental cavity and the restoration.
  • Digestive System Fistula [M0024665]
    An abnormal passage communicating between any components of the digestive system, or between any part of the digestive system and surrounding organ(s).
  • Dilatation, Pathologic [M0006429]
    The condition of an anatomical structure's being dilated beyond normal dimensions.
  • Disease Transmission [M0027825]
    The transmission of infectious disease or pathogens. When transmission is within the same species, the mode can be horizontal (DISEASE TRANSMISSION, HORIZONTAL) or vertical (DISEASE TRANSMISSION, VERTICAL).
  • Disease Transmission, Horizontal [M0027668]
    The transmission of infectious disease or pathogens from one individual to another in the same generation.
  • Disease Transmission, Patient-to-Professional [M0026844]
    The transmission of infectious disease or pathogens from patients to health professionals or health care workers. It includes transmission via direct or indirect exposure to bacterial, fungal, parasitic, or viral agents.
  • Disease Transmission, Professional-to-Patient [M0026843]
    The transmission of infectious disease or pathogens from health professional or health care worker to patients. It includes transmission via direct or indirect exposure to bacterial, fungal, parasitic, or viral agents.
  • Disease Transmission, Vertical [M0027666]
    The transmission of infectious disease or pathogens from one generation to another. It includes transmission in utero or intrapartum by exposure to blood and secretions, and postpartum exposure via breastfeeding.
  • Drooling [M0019819]
  • Drowning [M0006811]
    Death that occurs as a result of anoxia or heart arrest, associated with immersion in liquid.
  • Dysmenorrhea [M0006924]
    Painful menstruation.
  • Dyspnea, Paroxysmal [M0006932]
    A disorder characterized by episodes of respiratory distress, usually occurring after several hours of sleep in a reclining position. It is most commonly caused by pulmonary edema resulting from congestive heart failure. The episodes may be accompanied by coughing, a feeling of suffocation, a cold sweat, and tachycardia.
  • Ecchymosis [M0006955]
    Extravasation of blood into the skin, resulting in a nonelevated, rounded or irregular, blue or purplish patch, larger than a petechia.
  • Embryo Death [M0328907]
  • Embryo Disintegration [M0408230]
  • Embryo Loss [M0328441]
    Early pregnancy loss during the EMBRYO stage of development. In the human, this period comprises the second through eighth week after fertilization.
  • Embryo Resorption [M0007256]
  • Emphysema [M0007311]
    A pathological accumulation of air in tissues or organs.
  • Empyema [M0007327]
    Presence of pus in a hollow organ or body cavity.
  • Eosinophilic Granuloma [M0007533]
    The most benign clinical form of Langerhans-cell histiocytosis (HISTIOCYTOSIS, LANGERHANS-CELL), which involves localized nodular lesions of the gastric mucosa, small intestine, bones, lungs, or skin, with infiltration by eosinophils. The proliferating cell that appears to be responsible for the clinical manifestations is the Langerhans cell.
  • Epistaxis [M0007601]
    Bleeding from the nose.
  • Erythema [M0007679]
    Redness of the skin produced by congestion of the capillaries. This condition may result from a variety of causes.
  • Esophageal Fistula [M0007749]
    Abnormal passage communicating with the ESOPHAGUS. The most common type is TRACHEOESOPHAGEAL FISTULA between the esophagus and the TRACHEA.
  • Exostoses [M0008036]
    Benign hypertrophy that projects outward from the surface of bone, often containing a cartilaginous component.
  • Extravasation of Contrast Media [M0008075]
  • Extravasation of Diagnostic and Therapeutic Materials [M0008076]
    The escape of diagnostic or therapeutic material from the vessel into which it is introduced into the surrounding tissue or body cavity.
  • Eye Hemorrhage [M0008090]
    Intraocular hemorrhage from the vessels of various tissues of the eye.
  • Facial Asymmetry [M0008110]
    Congenital or acquired asymmetry of the face.
  • Fat Necrosis [M0008251]
    A condition in which the death of adipose tissue results in neutral fats being split into fatty acids and glycerol.
  • Fatal Outcome [M0026902]
    Death resulting from the presence of a disease in an individual, as shown by a single case report or a limited number of patients. This should be differentiated from DEATH, the physiological cessation of life and from MORTALITY, an epidemiological or statistical concept.
  • Fecal Impaction [M0008283]
    Formation of a firm impassable mass of stool in the RECTUM or distal COLON.
  • Fetal Death [M0008392]
    Death of the developing young in utero. BIRTH of a dead FETUS is STILLBIRTH.
  • Fibrosis [M0008453]
    Any pathological condition where fibrous connective tissue invades any organ, usually as a consequence of inflammation or other injury.
  • Fistula [M0008526]
    Abnormal communication most commonly seen between two internal organs, or between an internal organ and the surface of the body.
  • Focal Infection, Dental [M0008657]
    Secondary or systemic infections due to dissemination throughout the body of microorganisms whose primary focus of infection lies in the periodontal tissues.
  • Foreign-Body Reaction [M0008743]
    Chronic inflammation and granuloma formation around irritating foreign bodies.
  • Frigidity [M0029724]
  • Furcation Defects [M0026930]
    Conditions in which a bifurcation or trifurcation of the molar tooth root becomes denuded as a result of periodontal disease. It may be followed by tooth mobility, temperature sensitivity, pain, and alveolar bone resorption.
  • Gastric Fistula [M0009003]
    Abnormal passage communicating with the STOMACH.
  • Gastrointestinal Hemorrhage [M0010153]
    Bleeding in any segment of the GASTROINTESTINAL TRACT from ESOPHAGUS to RECTUM.
  • Gingival Hemorrhage [M0009237]
    The flowing of blood from the marginal gingival area, particularly the sulcus, seen in such conditions as GINGIVITIS, marginal PERIODONTITIS, injury, and ASCORBIC ACID DEFICIENCY.
  • Gliosis [M0009275]
    The production of a dense fibrous network of neuroglia; includes astrocytosis, which is a proliferation of astrocytes in the area of a degenerative lesion.
  • Graft Occlusion, Vascular [M0009575]
    Obstruction of flow in biological or prosthetic vascular grafts.
  • Graft vs Host Reaction [M0009579]
    An immunological attack mounted by a graft against the host because of tissue incompatibility when immunologically competent cells are transplanted to an immunologically incompetent host; the resulting clinical picture is that of GRAFT VS HOST DISEASE.
  • Granuloma [M0009605]
    A relatively small nodular inflammatory lesion containing grouped mononuclear phagocytes, caused by infectious and noninfectious agents.
  • Granuloma, Foreign-Body [M0024134]
    Histiocytic, inflammatory response to a foreign body. It consists of modified macrophages with multinucleated giant cells, in this case foreign-body giant cells (GIANT CELLS, FOREIGN-BODY), usually surrounded by lymphocytes.
  • Granuloma, Giant Cell [M0009608]
    A non-neoplastic inflammatory lesion, usually of the jaw or gingiva, containing large, multinucleated cells. It includes reparative giant cell granuloma. Peripheral giant cell granuloma refers to the gingiva (giant cell epulis); central refers to the jaw.
  • Granuloma, Laryngeal [M0009610]
    A polypoid granulomatous projection into the lumen of the larynx.
  • Granuloma, Plasma Cell [M0009613]
    A slow-growing benign pseudotumor in which plasma cells greatly outnumber the inflammatory cells.
  • Granuloma, Plasma Cell, Orbital [M0025469]
    A chronic neoplasm-like inflammatory reaction, usually affecting the orbital tissues of both eyes, also known as orbital myositis.
  • Granuloma, Respiratory Tract [M0024165]
    Granulomatous disorders affecting one or more sites in the respiratory tract.
  • Growth Disorders [M0009654]
    Deviations from the average values for a specific age and sex in any or all of the following: height, weight, skeletal proportions, osseous development, or maturation of features. Included here are both acceleration and retardation of growth.
  • Heart Arrest [M0009938]
    Cessation of the heart beat.
  • Heartburn [M0009980]
    Substernal pain or burning sensation, usually associated with regurgitation of gastric juice into the esophagus.
  • Hemarthrosis [M0010037]
    Bleeding into the joints. It may arise from trauma or spontaneously in patients with hemophilia.
  • Hematemesis [M0010038]
    Vomiting of blood that is either fresh bright red, or older "coffee-ground" in character. It generally indicates bleeding of the UPPER GASTROINTESTINAL TRACT.
  • Hematocele [M0010040]
    Hemorrhage into a canal or cavity of the body, such as the space covered by the serous membrane (tunica vaginalis) around the TESTIS leading to testicular hematocele or scrotal hematocele.
  • Hematochezia [M0010154]
    The passage of bright red blood from the rectum. The blood may or may not be mixed with formed stool in the form of blood, blood clots, bloody stool or diarrhea.
  • Hematoma [M0010048]
    An extravasation of blood localized in an organ, space, or tissue.
  • Hematuria [M0010065]
    Presence of blood in the urine.
  • Hemobilia [M0010097]
    Hemorrhage in or through the BILIARY TRACT due to trauma, inflammation, CHOLELITHIASIS, vascular disease, or neoplasms.
  • Hemopneumothorax [M0010150]
    Collection of air and blood in the pleural cavity.
  • Hemoptysis [M0010151]
    Bronchial hemorrhage manifested with spitting of blood.
  • Hemorrhage [M0010152]
    Bleeding or escape of blood from a vessel.
  • Hemothorax [M0010185]
    Hemorrhage within the pleural cavity.
  • Hepatic Insufficiency [M0461663]
    Conditions in which the LIVER functions fall below the normal ranges. Severe hepatic insufficiency may cause LIVER FAILURE or DEATH. Treatment may include LIVER TRANSPLANTATION.
  • Hepatomegaly [M0010237]
    Enlargement of the liver.
  • Host vs Graft Reaction [M0010622]
    The immune responses of a host to a graft. A specific response is GRAFT REJECTION.
  • Hyperammonemia [M0356710]
    Elevated level of AMMONIA in the blood. It is a sign of defective CATABOLISM of AMINO ACIDS or ammonia to UREA.
  • Hyperamylasemia [M0405343]
    A condition with abnormally elevated level of AMYLASES in the serum. Hyperamylasemia due to PANCREATITIS or other causes may be differentiated by identifying the amylase isoenzymes.
  • Hyperbilirubinemia [M0010811]
    A condition characterized by an abnormal increase of BILIRUBIN in the blood, which may result in JAUNDICE. Bilirubin, a breakdown product of HEME, is normally excreted in the BILE or further catabolized before excretion in the urine.
  • Hypercapnia [M0010816]
    A clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood.
  • Hyperkalemia [M0010828]
    Abnormally high potassium concentration in the blood, most often due to defective renal excretion. It is characterized clinically by electrocardiographic abnormalities (elevated T waves and depressed P waves, and eventually by atrial asystole). In severe cases, weakness and flaccid paralysis may occur. (Dorland, 27th ed)
  • Hyperoxia [M0027738]
    An abnormal increase in the amount of oxygen in the tissues and organs.
  • Hyperpigmentation [M0026546]
    Excessive pigmentation of the skin, usually as a result of increased epidermal or dermal melanin pigmentation, hypermelanosis. Hyperpigmentation can be localized or generalized. The condition may arise from exposure to light, chemicals or other substances, or from a primary metabolic imbalance.
  • Hyperplasia [M0010849]
    An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells.
  • Hypersensitivity [M0010851]
    Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.
  • Hypersensitivity, Contact [M0006053]
  • Hypersensitivity, Delayed [M0010853]
    An increased reactivity to specific antigens mediated not by antibodies but by cells.
  • Hypersensitivity, Immediate [M0010854]
    Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-antibody reaction and causes smooth muscle contraction and increased vascular permeability.
  • Hypertrophy [M0010875]
    General increase in bulk of a part or organ due to CELL ENLARGEMENT and accumulation of FLUIDS AND SECRETIONS, not due to tumor formation, nor to an increase in the number of cells (HYPERPLASIA).
  • Hypertrophy, Left Ventricular [M0026394]
    Enlargement of the left ventricle of the heart. This increase in ventricular mass is attributed to sustained abnormal pressure or volume loads and is a contributor to cardiovascular morbidity and mortality.
  • Hypertrophy, Right Ventricular [M0026395]
    Enlargement of the right ventricle of the heart. This increase in ventricular mass is often attributed to pulmonary hypertension and is a contributor to cardiovascular morbidity and mortality.
  • Hyperuricemia [M0402804]
    Excessive URIC ACID or urate in blood as defined by its solubility in plasma at 37 degrees C; greater than 0.42mmol per liter (7.0mg/dL) in men or 0.36mmol per liter (6.0mg/dL) in women. This condition is caused by overproduction of uric acid or impaired renal clearance. Hyperuricemia can be acquired, drug-induced or genetically determined (LESCH-NYHAN SYNDROME). It is associated with HYPERTENSION and GOUT.
  • Hyperventilation [M0010876]
    A pulmonary ventilation rate faster than is metabolically necessary for the exchange of gases. It is the result of an increased frequency of breathing, an increased tidal volume, or a combination of both. It causes an excess intake of oxygen and the blowing off of carbon dioxide.
  • Hyphema [M0010879]
    Bleeding in the anterior chamber of the eye.
  • Hypocapnia [M0025658]
    Clinical manifestation consisting of a deficiency of carbon dioxide in arterial blood.
  • Hypochlorhydria [M0000201]
  • Hypokinesia [M0027712]
    Slow or diminished movement of body musculature. It may be associated with BASAL GANGLIA DISEASES; MENTAL DISORDERS; prolonged inactivity due to illness; and other conditions.
  • Hypotension [M0010927]
    Abnormally low blood pressure seen in shock but not necessarily indicative of it. (Dorland, 28th ed)
  • Hypoventilation [M0010951]
    A reduction in the amount of air entering the pulmonary alveoli.
  • Hypovolemia [M0328462]
    An abnormally low volume of blood circulating through the body. It may result in hypovolemic shock (see SHOCK).
  • Hypovolemic Shock [M0019781]
  • Hypoxia [M0001285]
  • Hypoxia, Brain [M0003872]
    A reduction in brain oxygen supply. Severe hypoxia is referred to as anoxia, and is a relatively common cause of injury to the central nervous system. Prolonged brain anoxia may lead to BRAIN DEATH or a PERSISTENT VEGETATIVE STATE. Histologically, this condition is characterized by neuronal loss which is most prominent in the HIPPOCAMPUS; GLOBUS PALLIDUS; CEREBELLUM; and inferior olives. (From Adams et al., Principles of Neurology, 6th ed, pp1109-11)
  • Immediate Postpartum Hemorrhage [M0481645]
  • Infarction [M0011293]
    Formation of an infarct, which is NECROSIS in tissue due to local ISCHEMIA resulting from obstruction of BLOOD CIRCULATION, most commonly by a THROMBUS or EMBOLUS.
  • Infertility, Female [M0011304]
    Diminished or absent ability of a female to achieve conception.
  • Infertility, Male [M0011306]
    The inability of the male to effect FERTILIZATION of an OVUM after a specified period of unprotected intercourse. Male sterility is permanent infertility.
  • Inflammation [M0011307]
    A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function.
  • Injuries, Surgical [M0011599]
  • Insulin Resistance [M0011432]
    Diminished effectiveness of INSULIN in lowering blood sugar levels: requiring the use of 200 units or more of insulin per day to prevent HYPERGLYCEMIA or KETOSIS. It can be caused by the presence of INSULIN ANTIBODIES or the abnormalities in insulin receptors (RECEPTOR, INSULIN) on target cell surfaces. It is often associated with OBESITY; DIABETIC KETOACIDOSIS; INFECTION; and certain rare conditions. (from Stedman, 25th ed)
  • Intoxication [M0332481]
  • Intracranial Hemorrhage, Hypertensive [M0328609]
    Bleeding within the brain or adjacent structures which results from systemic HYPERTENSION, usually in association with INTRACRANIAL ARTERIOSCLEROSIS. Hypertensive hemorrhages are most frequent in the BASAL GANGLIA; CEREBELLUM; PONS; and THALAMUS; but may also involve the CEREBRAL CORTEX, subcortical white matter, and other brain structures.
  • Intracranial Hemorrhages [M0328611]
    Bleeding within the intracranial cavity, including hemorrhages in the brain and within the cranial epidural, subdural, and subarachnoid spaces.
  • Intraoperative Complications [M0011598]
    Complications that affect patients during surgery. They may or may not be associated with the disease for which the surgery is done, or within the same surgical procedure.
  • Irreversible Coma [M0334154]
  • Kindling, Neurologic [M0012039]
    The repeated weak excitation of brain structures, that progressively increases sensitivity to the same stimulation. Over time, this can lower the threshold required to trigger seizures.
  • Laryngeal Edema [M0012228]
    Edema of any region of the larynx from a variety of causes. In the earliest stages it may be difficult to differentiate from infection, although mucosal injection and erythema are found more often in the latter. Allergic edema may result as a response from provocation induced by foods, inhalants, and drugs. The entire respiratory tract or only an isolated portion of the larynx may be affected. Laryngeal edema may also be hereditary. Other possible causes of laryngeal edema include increased capillary pressure due to superior vena cava syndrome, internal jugular vein ligation, lowered plasma osmotic failure induced by renal failure, impaired lymphatic flow, and increased capillary permeability to proteins. (From Paparella et al., Otolaryngology, 3d ed, p2253)
  • Leukoaraiosis [M0464046]
    Non-specific white matter changes in the BRAIN, often seen after age 65. Changes include loss of AXONS; MYELIN pallor, GLIOSIS, loss of ependymal cells, and enlarged perivascular spaces. Leukoaraiosis is a risk factor for DEMENTIA and CEREBROVASCULAR DISORDERS.
  • Leukocytosis [M0012413]
    A transient increase in the number of leukocytes in a body fluid.
  • Leukopenia [M0012421]
  • Lithiasis [M0029982]
    A condition characterized by the formation of CALCULI and concretions in the hollow organs or ducts of the body. They occur most often in the gallbladder, kidney, and lower urinary tract.
  • Liver Dysfunction [M0012645]
  • Liver Failure [M0025970]
    Severe inability of the LIVER to perform its normal metabolic functions, as evidenced by severe JAUNDICE and abnormal serum levels of AMMONIA; BILIRUBIN; ALKALINE PHOSPHATASE; ASPARTATE AMINOTRANSFERASE; LACTIC DEHYDROGENASE; and albumin/globulin ratio. (Blakiston's Gould Medical Dictionary, 4th ed)
  • Low Cardiac Output Syndrome [M0003454]
  • Lymphadenitis [M0012783]
    Inflammation of the lymph nodes.
  • Macroamylasemia [M0405363]
    A benign condition in which the circulating AMYLASES are of high molecular masses, macroamylases. Macroamylases are amylase-plasma protein complexes, usually with immunoglobulins. Macroamylases cannot be cleared by the renal glomeruli.
  • Malacoplakia [M0012909]
    The formation of soft patches on the mucous membrane of a hollow organ, such as the urogenital tract or digestive tract.
  • Malignant Hyperthermia [M0012932]
    Rapid and excessive rise of temperature accompanied by muscular rigidity following general anesthesia.
  • Marasmus [M0017877]
  • Massive Hepatic Necrosis [M0012643]
    Extensive and rapid death of parenchymal cells in the LIVER, often due to exposure to toxic materials. It is characterized by a soft, flabby, yellow-brown wrinkled, and shrunken liver. It was called "acute yellow atrophy".
  • Maternal-Fetal Transmission [M0027667]
  • Mediastinal Emphysema [M0013198]
    Presence of air in the mediastinal tissues due to leakage of air from the tracheobronchial tree, usually as a result of trauma.
  • Melena [M0013320]
    The black, tarry, foul-smelling FECES that contain degraded blood.
  • Menorrhagia [M0013382]
    Excessive uterine bleeding during MENSTRUATION.
  • Menstruation Disturbances [M0013402]
    Variations of menstruation which may be indicative of disease.
  • Mesial Movement of Teeth [M0013468]
  • Metrorrhagia [M0013711]
    Abnormal uterine bleeding that is not related to MENSTRUATION, usually in females without regular MENSTRUAL CYCLE. The irregular and unpredictable bleeding usually comes from a dysfunctional ENDOMETRIUM.
  • Monckeberg Medial Calcific Sclerosis [M0356225]
    Thickening and loss of elasticity of the walls of muscular ARTERIES due to calcification of the TUNICA MEDIA, the concentric layers of helically arranged SMOOTH MUSCLE CELLS.
  • Mouth Breathing [M0014129]
    Abnormal breathing through the mouth, usually associated with obstructive disorders of the nasal passages.
  • Multiple Organ Failure [M0014196]
    A progressive condition usually characterized by combined failure of several organs such as the lungs, liver, kidney, along with some clotting mechanisms, usually postinjury or postoperative.
  • Muscle Weakness [M0028272]
    A vague complaint of debility, fatigue, or exhaustion attributable to weakness of various muscles. The weakness can be characterized as subacute or chronic, often progressive, and is a manifestation of many muscle and neuromuscular diseases. (From Wyngaarden et al., Cecil Textbook of Medicine, 19th ed, p2251)
  • Nails, Abnormal [M0497285]
  • Necrobiotic Disorders [M0026461]
    A group of disorders characterized by swelling, basophilia, and distortion of collagen bundles in the dermis.
  • Necrosis [M0014544]
    The pathological process occurring in cells that are dying from irreparable injuries. It is caused by the progressive, uncontrolled action of degradative ENZYMES, leading to MITOCHONDRIAL SWELLING, nuclear flocculation, and cell lysis. Distinguish it from APOPTOSIS which is a normal, regulated cellular process.
  • Necrosis, Aseptic, of Bone [M0015547]
  • Necrosis, Avascular, of Bone [M0015545]
  • Necrosis, Avascular, of Femur Head [M0008321]
  • Neoplasm Invasiveness [M0014576]
    Ability of neoplasms to infiltrate and actively destroy surrounding tissue.
  • Neoplasm Seeding [M0014581]
    The local implantation of tumor cells by contamination of instruments and surgical equipment during and after surgical resection, resulting in local growth of the cells and tumor formation.
  • Neovascularization, Pathologic [M0014620]
    A pathologic process consisting in proliferation of blood vessels in abnormal tissues or in abnormal positions.
  • Neurogenic Muscular Atrophy [M0336456]
  • Ochronosis [M0015207]
    The yellowish discoloration of connective tissue due to deposition of HOMOGENTISIC ACID (a brown-black pigment). This is due to defects in the metabolism of PHENYLALANINE and TYROSINE. Ochronosis occurs in ALKAPTONURIA, but has also been associated with exposure to certain chemicals (e.g., PHENOL, trinitrophenol, BENZENE DERIVATIVES).
  • Oligomenorrhea [M0015276]
    Abnormally infrequent menstruation.
  • Oliguria [M0015284]
    Decreased URINE output that is below the normal range. Oliguria can be defined as urine output of less than or equal to 0.5 or 1 ml/kg/hr depending on the age.
  • Oral Fistula [M0024666]
    An abnormal passage within the mouth communicating between two or more anatomical structures.
  • Oral Hemorrhage [M0010155]
    Bleeding from the blood vessels of the mouth, which may occur as a result of injuries to the mouth, accidents in oral surgery, or diseases of the gums.
  • Oroantral Fistula [M0015436]
    A fistula between the maxillary sinus and the oral cavity.
  • Ossification of Posterior Longitudinal Ligament [M0027030]
    A calcification of the posterior longitudinal ligament of the spinal column, usually at the level of the cervical spine. It is often associated with anterior ankylosing hyperostosis.
  • Ossification, Heterotopic [M0015505]
    The development of bony substance in normally soft structures.
  • Osteolysis [M0015536]
    Dissolution of bone that particularly involves the removal or loss of calcium.
  • Osteonecrosis [M0015546]
    Death of a bone or part of a bone, either atraumatic or posttraumatic.
  • Pachyonychia [M0494508]
    Thickened nails.
  • Pain, Postoperative [M0015751]
    Pain during the period after surgery.
  • Pancreatic Fistula [M0015798]
    Abnormal passage communicating with the PANCREAS.
  • Parasympathomimetics [M0015925]
    Drugs that mimic the effects of parasympathetic nervous system activity. Included here are drugs that directly stimulate muscarinic receptors and drugs that potentiate cholinergic activity, usually by slowing the breakdown of acetylcholine (CHOLINESTERASE INHIBITORS). Drugs that stimulate both sympathetic and parasympathetic postganglionic neurons (GANGLIONIC STIMULANTS) are not included here.
  • Parasystole [M0026636]
    A cardiac arrhythmia caused by the interaction of two foci independently initiating cardiac impulses at different rates. Generally one of the foci is the sinoatrial node (the normal pacemaker) and the ectopic focus is usually in the ventricle, but can occur in the sinus and AV nodes, atrium and ventricle, and AV junction. Each focus - and thus each rhythm - is protected from the influence of the other.
  • Pathologic Processes [M0016012]
    The abnormal mechanisms and forms involved in the dysfunctions of tissues and organs.
  • Pathological Conditions, Anatomical [M0328642]
    An abnormal structural condition of the human body, usually macroscopic, that is common to a variety of different diseases.
  • Pathological Conditions, Signs and Symptoms [M0020949]
    Abnormal anatomical or physiological conditions and objective or subjective manifestations of disease, not classified as disease or syndrome.
  • Peptic Ulcer Hemorrhage [M0016212]
    Bleeding from a PEPTIC ULCER that can be located in any segment of the GASTROINTESTINAL TRACT.
  • Periaortitis, Chronic [M0018973]
  • Perinatal Subarachnoid Hemorrhage [M0336182]
  • Phlegmon [M0003789]
  • Pleocytosis [M0012414]
  • Poisoning [M0017099]
    A condition or physical state produced by the ingestion, injection or inhalation of, or exposure to a deleterious agent.
  • Polyhydramnios [M0010680]
    A condition of abnormally high AMNIOTIC FLUID volume, such as greater than 2,000 ml in the LAST TRIMESTER and usually diagnosed by ultrasonographic criteria (AMNIOTIC FLUID INDEX). It is associated with maternal DIABETES MELLITUS; MULTIPLE PREGNANCY; CHROMOSOMAL DISORDERS; and congenital abnormalities.
  • Posterior Fossa Hemorrhage [M0332725]
  • Postmortem Changes [M0017362]
    Physiological changes that occur in bodies after death.
  • Postoperative Complications [M0017367]
    Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.
  • Postoperative Hemorrhage [M0028512]
    Hemorrhage following any surgical procedure. It may be immediate or delayed and is not restricted to the surgical wound.
  • Postoperative Nausea [M0029913]
  • Postoperative Nausea and Vomiting [M0029915]
    Emesis and queasiness occurring after anesthesia.
  • Postpartum Amenorrhea [M0000888]
  • Postpartum Hemorrhage [M0010156]
    Excess blood loss from uterine bleeding associated with OBSTETRIC LABOR or CHILDBIRTH. It is defined as blood loss greater than 500 ml or of the amount that adversely affects the maternal physiology, such as BLOOD PRESSURE and HEMATOCRIT. Postpartum hemorrhage is divided into two categories, immediate (within first 24 hours after birth) or delayed (after 24 hours postpartum).
  • Pregnancy Luteoma [M0460171]
  • Premature Birth [M0012118]
    CHILDBIRTH before 37 weeks of PREGNANCY (259 days from the first day of the mother's last menstrual period, or 245 days after FERTILIZATION).
  • Prolapse [M0017692]
    The protrusion of an organ or part of an organ into a natural or artificial orifice.
  • Prostatic Hyperplasia [M0017830]
    Increase in constituent cells in the PROSTATE, leading to enlargement of the organ (hypertrophy) and adverse impact on the lower urinary tract function. This can be caused by increased rate of cell proliferation, reduced rate of cell death, or both.
  • Prostatic Hypertrophy [M0489821]
  • Prosthesis-Related Infections [M0025145]
    Infections resulting from the implantation of prosthetic devices. The infections may be acquired from intraoperative contamination (early) or hematogenously acquired from other sites (late).
  • Pseudopregnancy [M0017962]
    An acyclic state that resembles PREGNANCY in that there is no ovarian cycle, ESTROUS CYCLE, or MENSTRUAL CYCLE. Unlike pregnancy, there is no EMBRYO IMPLANTATION. Pseudopregnancy can be experimentally induced to form DECIDUOMA in the UTERUS.
  • Putaminal Hemorrhage [M0328279]
    Bleeding into the PUTAMEN, a BASAL GANGLIA nucleus. This is a relatively common site of spontaneous intracranial hemorrhage and is associated with chronic HYPERTENSION and lipohyalinosis of small blood vessels in the putamen. Clinical manifestations vary with the size of hemorrhage, but include hemiparesis, headache, and alterations of consciousness.
  • Pyomyositis [M0490118]
    An intramuscular suppuration of the large skeletal muscle groups. It is associated with INFECTION such as STAPHYLOCOCCUS AUREUS and PYODERMA. It was known as a tropical disease but is increasing among the immunocompromised (IMMUNOCOMPROMISED HOST). Symptoms include muscle pain, FEVER, and leucocytosis. It has been diagnosed by MRI SCANS.
  • Regurgitation, Gastric [M0009025]
  • Respiratory Depression [M0373535]
  • Respiratory Failure [M0373534]
  • Respiratory Hypersensitivity [M0018896]
    A form of hypersensitivity affecting the respiratory tract. It includes ASTHMA and RHINITIS, ALLERGIC, SEASONAL.
  • Respiratory Insufficiency [M0018897]
    Failure to adequately provide oxygen to cells of the body and to remove excess carbon dioxide from them. (Stedman, 25th ed)
  • Respiratory Tract Fistula [M0024667]
    An abnormal passage communicating between any component of the respiratory tract or between any part of the respiratory system and surrounding organs.
  • Retinal Hemorrhage [M0018947]
    Bleeding from the vessels of the retina.
  • Retinal Neovascularization [M0024285]
    Formation of new blood vessels originating from the retinal veins and extending along the inner (vitreal) surface of the retina.
  • Retrobulbar Hemorrhage [M0028760]
    Hemorrhage within the orbital cavity, posterior to the eyeball.
  • Retroperitoneal Fibrosis [M0018974]
    A slowly progressive condition of unknown etiology, characterized by deposition of fibrous tissue in the retroperitoneal space compressing the ureters, great vessels, bile duct, and other structures. When associated with abdominal aortic aneurysm, it may be called chronic periaortitis or inflammatory perianeurysmal fibrosis.
  • Retropneumoperitoneum [M0018977]
    Pathological or accidental introduction of air into the retroperitoneal space.
  • Rh Sensitization [M0018996]
  • Rhabdomyolysis [M0018999]
    Necrosis or disintegration of skeletal muscle often followed by myoglobinuria.
  • Rheumatic Nodule [M0019013]
    A small round or oval, mostly subcutaneous nodule made up chiefly of a mass of Aschoff bodies and seen in cases of rheumatic fever. It is differentiated from the RHEUMATOID NODULE which appears in rheumatoid arthritis, most frequently over bony prominences. (From Dorland, 27th ed)
  • Rheumatoid Nodule [M0019017]
    Subcutaneous nodules seen in 20-30% of rheumatoid arthritis patients. They may arise anywhere on the body, but are most frequently found over the bony prominences. The nodules are characterized histologically by dense areas of fibrinoid necrosis with basophilic streaks and granules, surrounded by a palisade of cells, mainly fibroblasts and histiocytes.
  • Rigor Mortis [M0019118]
    Muscular rigidity which develops in the cadaver usually from 4 to 10 hours after death and lasts 3 or 4 days.
  • Rupture, Spontaneous [M0019305]
    Tear or break of an organ, vessel or other soft part of the body, occurring in the absence of external force.
  • Salivary Calculi [M0328643]
    The presence of calculi in a salivary duct or gland.
  • Salivary Duct Calculi [M0019374]
    Presence of small calculi in the terminal salivary ducts (salivary sand), or stones (larger calculi) found in the larger ducts.
  • Salivary Gland Calculi [M0023857]
    Calculi occurring in a salivary gland. Most salivary gland calculi occur in the submandibular gland, but can also occur in the parotid gland and in the sublingual and minor salivary glands.
  • Salivary Gland Fistula [M0019376]
    A fistula between a salivary duct or gland and the cutaneous surface of the oral cavity.
  • Sclerosis [M0019550]
    A pathological process consisting of hardening or fibrosis of an anatomical structure, often a vessel or a nerve.
  • sequelae [M0030341]
  • sequels [M0030342]
  • Seroma [M0464044]
    Tumor-like sterile accumulation of serum in a tissue, organ, or cavity. It results from a tissue insult and is the product of tissue inflammation. It most commonly occurs following MASTECTOMY.
  • Serositis [M0019682]
    Inflammation of a serous membrane.
  • Shock [M0019782]
    A pathological condition that can suddenly affect the hemodynamic equilibrium, usually manifested by failure to perfuse or oxygenate vital organs.
  • Shock, Cardiogenic [M0019783]
    Shock resulting from diminution of cardiac output in heart disease.
  • Shock, Hemorrhagic [M0019784]
    Acute hemorrhage or excessive fluid loss resulting in HYPOVOLEMIA.
  • Shock, Surgical [M0019789]
    A type of shock that occurs as a result of a surgical procedure.
  • Shock, Traumatic [M0019790]
    Shock produced as a result of trauma.
  • Skin Wrinkling [M0023940]
  • Sleep Fragmentation [M0334755]
  • Sleep Paralysis [M0328303]
    A common condition characterized by transient partial or total paralysis of skeletal muscles and areflexia that occurs upon awakening from sleep or less often while falling asleep. Stimuli such as touch or sound may terminate the episode, which usually has a duration of seconds to minutes. This condition may occur in normal subjects or be associated with NARCOLEPSY; CATAPLEXY; and hypnagogic HALLUCINATIONS. The pathophysiology of this condition is closely related to the normal hypotonia that occur during REM sleep. (From Adv Neurol 1995;67:245-271)
  • Splenomegaly [M0020373]
    Enlargement of the spleen.
  • Starvation [M0020441]
    Lengthy and continuous deprivation of food. (Stedman, 25th ed)
  • Sterility, Female [M0329024]
  • Sterility, Male [M0329025]
  • Sterility, Postpartum [M0011305]
  • Sterility, Reproductive [M0011303]
  • Stress [M0020601]
    A pathological process resulting from the reaction of the body to external forces and abnormal conditions that tend to disturb the organism's homeostasis.
  • Subarachnoid Hemorrhage, Aneurysmal [M0336183]
  • Subarachnoid Hemorrhage, Intracranial [M0336185]
  • Subarachnoid Hemorrhage, Spontaneous [M0336184]
  • Subarachnoid Hemorrhage, Traumatic [M0328646]
    Bleeding into the subarachnoid space following CRANIOCEREBRAL TRAUMA. Minor hemorrhages may be asymptomatic; moderate to severe hemorrhages may be associated with INTRACRANIAL HYPERTENSION and VASOSPASM, INTRACRANIAL.
  • Subcutaneous Emphysema [M0020653]
    Presence of air or gas in the subcutaneous tissues of the body.
  • Sudden Cardiac Arrest [M0490096]
  • Sudden Infant Death [M0020725]
    The abrupt and unexplained death of an apparently healthy infant under one year of age, remaining unexplained after a thorough case investigation, including performance of a complete autopsy, examination of the death scene, and review of the clinical history. (Pediatr Pathol 1991 Sep-Oct;11(5):677-84)
  • Superinfection [M0023304]
    A frequent complication of drug therapy for microbial infection. It may result from opportunistic colonization following immunosuppression by the primary pathogen and can be influenced by the time interval between infections, microbial physiology, or host resistance. Experimental challenge and in vitro models are sometimes used in virulence and infectivity studies.
  • Suppuration [M0020847]
    A pathologic process consisting in the formation of pus.
  • Surgical Wound Dehiscence [M0020903]
    Pathologic process consisting of a partial or complete disruption of the layers of a surgical wound.
  • Surgical Wound Infection [M0020904]
    Infection occurring at the site of a surgical incision.
  • Sweating Sickness [M0027899]
    A clinical condition characterized by fever and profuse sweating and associated with high mortality. It occurred in epidemic form five times in the fifteenth and sixteenth centuries in England, first in 1485 and last in 1551, specially during the summer and early autumn, attacking the relatively affluent adult male population. The etiology was unknown.
  • Tachyarrhythmia [M0020997]
  • Tachycardia [M0020996]
    Excessive rapidity in the action of the heart, usually with a heart rate above 100 beats per minute.
  • Testicular Hematocele [M0489412]
  • Thromboembolism [M0021430]
    Obstruction of a vessel by a blood clot that has been transported from a distant site by the blood stream.
  • Thrombosis [M0021435]
    Formation and development of a THROMBUS or blood clot in the blood vessel.
  • Tooth Migration [M0021685]
  • Torsion [M0021709]
    A twisting or rotation of a bodily part or member on its axis.
  • Tracheoesophageal Fistula [M0021749]
    Abnormal passage between the ESOPHAGUS and the TRACHEA, acquired or congenital, often associated with ESOPHAGEAL ATRESIA.
  • Transmission, Dentist-Patient [M0026841]
  • Transmission, Physician-Patient [M0026842]
  • Tropical Myositis [M0490119]
  • Tryptophan Metabolism Alterations [M0022089]
  • Tumor Escape [M0028536]
    The ability of tumors to evade destruction by the IMMUNE SYSTEM. Theories concerning possible mechanisms by which this takes place involve both cellular immunity (IMMUNITY, CELLULAR) and humoral immunity (ANTIBODY FORMATION), and also costimulatory pathways related to CD28 antigens (ANTIGENS, CD28) and CD80 antigens (ANTIGENS, CD80).
  • Ulcer [M0022226]
    A lesion on the surface of the skin or a mucous surface, produced by the sloughing of inflammatory necrotic tissue.
  • Urinary Bladder Calculi [M0002629]
    Stones in the URINARY BLADDER; also known as vesical calculi, bladder stones, or cystoliths.
  • Urinary Bladder Fistula [M0002633]
    An abnormal passage in the URINARY BLADDER or between the bladder and any surrounding organ.
  • Urinary Fistula [M0022369]
    An abnormal passage in any part of the URINARY TRACT between itself or with other organs.
  • Urinary Retention [M0024540]
    Inability to empty the URINARY BLADDER with voiding (URINATION).
  • Uterine Hemorrhage [M0022428]
    Bleeding from blood vessels in the UTERUS, sometimes manifested as vaginal bleeding.
  • Uterine Inertia [M0022430]
    Failure of the UTERUS to contract with normal strength, duration, and intervals during childbirth (LABOR, OBSTETRIC). It is also called uterine atony.
  • Vascular Fistula [M0024668]
    An abnormal passage between two or more arteries, or between an artery and a vein.
  • Vasogenic Brain Edema [M0334189]
  • Vasogenic Cerebral Edema [M0334188]
  • Venous Engorgement [M0022582]
  • Venous Thrombosis [M0029908]
    The formation or presence of a thrombus within a vein.
  • Ventricular Dysfunction [M0028090]
    A condition in which the ventricles of the heart exhibit a decreased functionality.
  • Ventricular Dysfunction, Left [M0027729]
    A condition in which the left ventricle of the heart exhibits a decreased functionality. This decreased function could lead to congestive heart failure or myocardial infarction, among other cardiovascular diseases. Diagnostic measurements that indicate this condition include a diminished ejection fraction and a depressed level of motility of the left ventricular wall.
  • Ventricular Dysfunction, Right [M0027739]
    A condition in which the right ventricle of the heart exhibits a decreased functionality. This decreased function could lead to congestive heart failure or myocardial infarction, among other cardiovascular diseases. Diagnostic measurements that indicate this condition include a diminished ejection fraction and a depressed level of motility of the right ventricular wall.
  • Ventricular Premature Complexes [M0028234]
    Premature contractions of the ventricle, the most common of all arrhythmias. In the absence of heart disease, they are not of great clinical significance, but in patients with coronary disease, they represent a constant danger of ventricular tachycardia or fibrillation and sudden death. The longer-term prognosis for asymptomatic, healthy subjects with frequent and complex ectopy is similar to that for the healthy United States population. (From Sokolow, et al., Clinical Cardiology, 5th ed, p491)
  • Virus Shedding [M0026103]
    The expelling of virus particles from the body. Important routes include the respiratory tract, genital tract, and intestinal tract. Virus shedding is an important means of vertical transmission (DISEASE TRANSMISSION, VERTICAL).
  • Vitreous Hemorrhage [M0022821]
    Hemorrhage into the VITREOUS BODY.
  • Vomiting, Postoperative [M0029914]
  • Water-Electrolyte Imbalance [M0022901]
    Disturbances in the body's WATER-ELECTROLYTE BALANCE.
  • Wound Infection [M0023017]
    Invasion of the site of trauma by pathogenic microorganisms.
  • Yang Deficiency [M0025453]
    In the YIN-YANG system of philosophy and medicine, a lack of vital energy (called yangxu in Chinese). It manifests itself in various systemic and organic diseases. (The Pinyin Chinese-English Dictionary, 1979)
  • Yin Deficiency [M0025452]
    In the YIN-YANG system of philosophy and medicine, an insufficiency of body fluid (called yinxu), manifesting often as irritability, thirst, constipation, etc. (The Pinyin Chinese-English Dictionary, 1979).