Image of tumor of granulosa cells, thought to derive from corpora lutea - the normal source of progesterone. They are confirmed by the typical granulosa cell micromorphology. Such tumors, up to 10 - 15 cm in diameter, are easily palpable per rectum. They may be smooth and solid (as seen in image), or contain numerous fluid-filled cavities. Some must be inactive endocrinologically, because the contralateral ovary from the animal represented in the image contained a normal corpus luteum. Others must produce hormones not normally expected from granulosa cells, because heifers behave as expected of a bull and aggressively. Fortunately, they are relatively uncommon, because they most often lead to surgical removal.

Bovine granulosa cell tumor

Credit: M. Drost

Digital Credit: Maarten Drost

Publisher: None

Rights: Name must appear as a credit whenever the image is used -

Description: Image of tumor of granulosa cells, thought to derive from corpora lutea - the normal source of progesterone. They are confirmed by the typical granulosa cell micromorphology. Such tumors, up to 10 - 15 cm in diameter, are easily palpable per rectum. They may be smooth and solid (as seen in image), or contain numerous fluid-filled cavities. Some must be inactive endocrinologically, because the contralateral ovary from the animal represented in the image contained a normal corpus luteum. Others must produce hormones not normally expected from granulosa cells, because heifers behave as expected of a bull and aggressively. Fortunately, they are relatively uncommon, because they most often lead to surgical removal.

Resolution: 500x387

File Size: 31.42 KB

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Bovine granulosa cell tumor

Credit: M. Drost

Digital Credit: Maarten Drost

Publisher: None