The granulomas are small, sparse, and without caseation.
2.
Such foci are sharply circumscribed, firm, gray-white to yellow areas that have a variable amount of central caseation and peripheral fibrosis.
3.
A related term, " caseation " ( literally : turning to cheese ) refers to a form of necrosis that, to the unaided eye ( i . e ., without a microscope ), appears cheese-like ( " caseous " ), and is typically ( but not uniquely ) a feature of the granulomas of tuberculosis.
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