Caseous degeneration

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Related to caseous necrosis: granuloma, tuberculosis, Fibrinoid necrosis
a morbid process, in scrofulous or consumptive persons, in which the products of inflammation are converted into a cheesy substance which is neither absorbed nor organized.

See also: Caseous

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Histologically, the granulomas in all tissues examined demonstrated similar histopathologic features, characterized by a central core of caseous necrosis and surrounded by an unorganized rim of mixed inflammatory cells, including neutrophils, lymphocytes, plasma cells, and epithelioid macrophages.
Disseminated histiocytic infiltration of either aggregates or sheets of epithelioid cells containing acid-fast bacilli, in the absence of caseous necrosis, were observed in different organs of the infected doves, especially lungs (23/23), intestines (9/23).
Intra-osseous lesions in both patients were diagnosed as tuberculosis when the histology revealed caseous necrosis surrounded by epithelioid and Langhans-type giant cells (Fig.
Mycobacterium tuberculosis was isolated on a culture, and a histopathological examination revealed caseous necrosis with granuloma formation (Figure 4).
Renal biopsy was performed, which showed several areas of granulomatous interstitial nephritis with multiple areas of caseous necrosis (Figure 4).
On histopathological examination of the lymph node showed characteristic granulomatous lesions showing caseous necrosis in the centre, and a prominent cuff of lymphocytes and plasma cells at the periphery.