Cholesterol granulomas are uncommon pathologic lesions in animals, although
they are important intracranial tumors in humans. This report describes ch
olesterol granulomas associated with multiple organ systems of three captiv
e meerkats. In the most severe case, meerkat No. 1, the pathologic behavior
of the cholesterol granuloma was unique in that it appeared to locally inv
ade the cerebrum and calvarium, possibly contributing to neurological defic
its observed antemortem. A review of other meerkat necropsies revealed inci
dental, asymptomatic cholesterol granulomas in organs of two other individu
als, meerkat Nos. 2 and 3. Histologically, all lesions were composed of cho
lesterol clefts admired with large, foamy macrophages containing hemosideri
n, multinucleated giant cells, lymphocytes, plasma cells, and foci of miner
alization. Hypercholesterolemia was documented in two of the three meerkats
.