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DictionarySeenecrosisischemic necrosis Note: This page may contain terms or definitions that are offensive or inappropriate for some readers.ischemic necrosis[i′skē·mik ne′krō·səs] (medicine) Local tissue death due to impaired blood supply. ischemic necrosis Note: This page may contain terms or definitions that are offensive or inappropriate for some readers.is·che·mic ne·cro·sisnecrosis caused by hypoxia resulting from local deprivation of blood supply, as by infarction.is·che·mic ne·cro·sis (is-kē'mik nĕ-krō'sis) Cell death caused by hypoxia resulting from local deprivation of blood supply, as by infarction. Synonym(s): ischaemic necrosis. necrosis (ne-kro'sis) ('sez?) plural.necroses [Gr. nekrosis, (state of) death] NECROSIS: Necrotic wound of the footThe death of cells, tissues, or organs. Necrosis may be caused by insufficient blood supply, pathogenic microorganisms, physical agents such as trauma or radiant energy (electricity, infrared, ultraviolet, roentgen, and radium rays), and chemical agents acting locally, acting internally after absorption, or placed into the wrong tissue. Some medicines cause necrosis if injected into the tissues rather than the vein, and some, such as iron dextran, cause necrosis if injected into areas other than deep muscle or vein. See: illustration; gangrene; mortificationnecrotizing (nek'ro-tiz?ing), adjectiveacute esophageal necrosisNecrotizing esophagitis.acute tubular necrosis Abbreviation: ATN Acute damage to the renal tubules; usually due to ischemia associated with shock. See: acute renal failureanemic necrosisNecrosis due to inadequate blood flow to a body part.aseptic necrosisNecrosis without infection, e.g., as a result of trauma or drug use.avascular necrosisOsteonecrosis.Balser fatty necrosis See: Balser fatty necrosiscaseous necrosisNecrosis with soft, dry, cheeselike formation, seen in diseases such as tuberculosis or syphilis. Synonym: cheesy necrosiscentral necrosisNecrosis that affects only the center of a body part.cheesy necrosisCaseous necrosis.coagulation necrosisNecrosis occurring esp. in infarcts. Coagulation occurs in the necrotic area, converting it into a homogeneous mass and depriving the organ or tissue of blood. Synonym: fibrinous necrosis; ischemic necrosiscolliquative necrosisNecrosis caused by liquefaction of tissue due to autolysis or bacterial putrefaction. Synonym: liquefactive necrosisdry necrosisDry gangrene.embolic necrosisNecrosis due to an embolic occlusion of an artery. fat necrosisNecrosis of fatty tissues, seen, for example, in patients with severe cases of pancreatitis.fibrinous necrosisCoagulation necrosis.focal necrosisNecrosis in small scattered areas, often seen in infection.gummatous necrosisNecrosis forming a dry rubbery mass resulting from syphilis.ischemic necrosisCoagulation necrosis.liquefactive necrosisColliquative necrosis.medial necrosisNecrosis of cells in the tunica media of an artery. moist necrosisNecrosis with softening and wetness of the dead tissue.postpartum pituitary necrosisSheehan syndrome.putrefactive necrosisNecrosis due to bacterial decomposition. radiation necrosisNecrosis caused by radiation exposure. subcutaneous fat necrosis of newbornAn inflammatory disorder of unknown cause affecting fat tissue that may occur in the newborn at the site of application of forceps during delivery and occasionally in premature infants. superficial necrosisNecrosis affecting only the outer layers of bone or any tissue.thrombotic necrosisNecrosis due to thrombus formation. total necrosisNecrosis affecting an entire organ or body part. Zenker necrosis See: Zenker, Friedrich Albert vonis·che·mic ne·cro·sis (is-kē'mik nĕ-krō'sis) Cell death caused by hypoxia resulting from local deprivation of blood supply. Synonym(s): ischaemic necrosis, ischaemic necrosis. ThesaurusSeeischemic |