caseation necrosis


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ca·se·ous ne·cro·sis

, caseation necrosis
necrosis characteristic of certain inflammations (for example, tuberculosis, histoplasmosis), which represents necrosis with loss of separate structures of the various cellular and histologic elements; affected tissue manifests the friable, crumbly consistency and dull, opaque quality observed in cheese.

caseation necrosis

Etymology: L, caseus, cheese; Gk, nekros, dead, osis, condition

ca·se·ous ne·cro·sis

, caseation necrosis (kā'sē-ŭs nĕ-krō'sis, kā-sē-ā'shŭn)
Necrosis characteristic of certain inflammations (e.g., tuberculosis, histoplasmosis); affected tissue manifests the friable, crumbly consistency and dull, opaque quality observed in cheese.
Synonym(s): caseous degeneration.

ca·se·ous ne·cro·sis

, caseation necrosis (kā'sē-ŭs nĕ-krō'sis, kā-sē-ā'shŭn)
Necrosis characteristic of some inflammations; affected tissue manifests the crumbly consistency and dull opaque quality of cheese. Also called caseous degeneration.
References in periodicals archive ?
Both USG and CT scan show number and extent of cervical lymph nodes, central caseation necrosis, matted lymph nodes, IJV invasion, and IJV thrombus.
The histological picture of hepatic tuberculoma is usually that of a large epithelioid tumour composed of conglomerate tubercles with central caseation necrosis.
The youngest patient was a two year old female child with a cold abscess on front of chest wall and the oldest patient was a 70 year old male presenting with a supraclavicular mass reported as Tuberculosis with extensive Caseation necrosis on FNAC.
This revealed miliary tuberculosis with diffuse granulomatous disease, caseation necrosis, and acid fast organisms identified at multi-organ sites including the liver, lungs, kidneys and adrenal glands.
Neither caseation necrosis nor mitotic figures were identified.
KEY WORDS: Caseation necrosis, Epithelioid granuloma, FNAC, Lymph node, Tuberculous lymphadenitis.
Gross section of the mass show multiple areas of caseation necrosis with stricture at the intestinal boarder (Fig.
epithelioid cell granulomas are observed histologically in both diseases, caseation necrosis is rarely observed in GR.
Pathologic findings showed granulomatous inflammation with caseation necrosis, foreign body-type giant cells, and proliferative endarteritis with vascular occlusions.
32% showed tuberculosis and were characterized by presence of confluent granulomas with areas of caseation necrosis, aggregation of epithelioid cells, Langhans giant cells and lymphocytic infiltrate.
Biopsy revealed fragments of fibrocollagenous tissue with areas of caseation necrosis, and epithelioid granulomas with Langhan type multinucleated giant cells.
DISCUSSION: Tuberculosis is a chronic granulomatous infection characterized by caseation necrosis and great propensity for fibrosis and calcification.