Ovary, Corpus Luteum - Cyst - Gallery

Ovary, Corpus luteum - Cyst in a female F344/N rat from a subchronic study. The cyst is thick walled and fluid filled, and a secondary follicle lined by dark basophilic granulosa cells is present in the adjacent parenchyma.

Ovary, Corpus luteum - Cyst in a female F344/N rat from a subchronic study (higher magnification of Figure 1). The cyst wall is composed of several layers of luteinized granulosa cells containing foamy, vacuolated, eosinophilic cytoplasm, and the lumen contains acellular eosinophilic material.