Caseous necrosis

Caseous necrosis
Micrograph showing caseous necrosis of a tuberculous lymph node. H&E stain. Histological specimens are normally obtained from supraclavicular lymph nodes to demonstrate caseous necrosis.
Subpleural caseous necrosis (Ghon focus)
SpecialtyPathology
ComplicationsLung cavity
CausesTuberculosis

Caseous necrosis or caseous degeneration (/ˈkeɪsiəs/) is a unique form of cell death in which the tissue maintains a cheese-like appearance. Unlike with coagulative necrosis, tissue structure is destroyed. Caseous necrosis is enclosed within a granuloma. Caseous necrosis is most notably associated with tuberculoma. The dead tissue appears as a soft and white proteinaceous dead cell mass.

The term caseous means 'pertaining or related to cheese', and comes from the Latin word caseus 'cheese'.

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