Caseous necrosis

 Caseous necrosis:

-Induced by cell mediated immunity.

-Tissue appears cheesy.

- Histologically consists of granular material surrounded by epithelioid cells and multinucleated giant cells.

- Seen in tuberculosis, fungal granulomas (histoplasmosis and coccidioidomycosis).

- Consists of both coagulative and liquefactive necrosis.

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