| necrotic | <medicine> Affected with necrosis; as, necrotic tissue; characterised by, or producing, necrosis; as, a necrotic process. Source: Websters Dictionary (01 Mar 1998) |
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| necrotic angina | An obsolete term for a form of angina occurring usually as a complication of scarlet fever and more rarely of diphtheria, in which gangrenous patches are found in the mucous membrane of the air passages. (05 Mar 2000) |
| necrotic cirrhosis | Post-necrotic cirrhosis, cirrhosis characterised by necrosis involving whole hepatic lobules, with collapse of the reticular framework to form large scars; regeneration nodules are also large; may follow viral or toxic necrosis, or develop as a result of ischemic necrosis. Synonym: necrotic cirrhosis. (05 Mar 2000) |
| necrotic cyst | A cyst due to a circumscribed encapsulated area of necrosis with subsequent liquefaction of the dead tissue. (05 Mar 2000) |
| necrotic infectious conjunctivitis | A unilateral, suppurative, necrotic inflammation of the conjunctiva characterised by scattered, elevated white spots in the fornices and palpebral conjunctiva, and ipsilateral swelling of preauricular, parotid, and submaxillary lymph glands. Synonym: Pascheff's conjunctivitis. (05 Mar 2000) |
| necrotic inflammation | Usually an acute inflammatory reaction in which the predominant histologic change is fairly rapid necrosis that occurs diffusely or extensively in relatively large foci throughout the affected tissue, frequently with only little or no evidence of cells in the exudate. (05 Mar 2000) |
| necrotic pulp | Necrosis of the dental pulp which clinically does not respond to thermal stimulation; the tooth may be asymptomatic or sensitive to percussion and palpation. Synonym: dead pulp, nonvital pulp. (05 Mar 2000) |
| necrotic rhinitis of pigs | An infection of the subcutaneous structures of the snout of swine which causes malformation of the face; it is frequently due to infection of wounds made for the insertion of metal rings to discourage or prevent the animal from rooting in the soil; Fusobacterium necrophorum plays an important role in this disease. Synonym: bullnose. (05 Mar 2000) |
| infectious necrotic hepatitis of sheep | A disease of sheep caused by the bacterium Clostridium novyi, which invades livers damaged by the fluke Fasciola hepatica and causes severe necrosis and death; this disease occurs in nearly all parts of the world, including the U.S. Sometimes called black disease because of the extensive haemorrhages seen on the inner surface of the pelt when it is removed. Synonym: black disease. (05 Mar 2000) |
| active caries | Microbial-induced lesions of teeth that are increasing in size. (05 Mar 2000) |
| arrested dental caries | Carious lesions that have become inactive and stopped progressing; they may exhibit changes in colour and/or consistency. (05 Mar 2000) |
| buccal caries | Caries beginning with decay on the buccal surface of a tooth. (05 Mar 2000) |
| caries | 1. <pathology> The molecular decay or death of a bone, in which it becomes softened, discoloured and porous. It produces a chronic inflammation of the periosteum and surrounding tissues and forms a cold abscess filled with a cheesy, fetid, puslike liquid, which generally burrows through the soft parts until it opens externally by a sinus or fistula. 2. <dentistry> Another name for cavities due to tooth decay, dental caries. (18 Nov 1997) |
| radiation caries | Caries of the cervical regions of the teeth, incisal edges, and cusp tips secondary to xerostomia induced by radiation therapy to the head and neck. (05 Mar 2000) |
| recurrent caries | Caries recurring in an area due to inadequate removal of the initial decay, usually beneath a restoration or new decay at a site where caries has previously occurred. (05 Mar 2000) |