Granulosa cell tumor in a mare with a functional contralateral ovary.
A functional corpus luteum was found in the ovary contralateral to the ovary with a granulosa cell tumor in a 24-year-old Standardbred mare. The mare was ovariectomized because she was to be used as a jump mare for collection of semen from stallions. The blood concentration of progesterone was 2.2 ng/ml, and the luteal tissue progesterone concentration was 6.3 micrograms/mg. Atrophy of the contralateral ovary is one of the major signs used in diagnosis of granulosa cell tumor; however, our findings indicate that the ovary contralateral to a granulosa cell tumor is not invariably nonfunctional.
Hinrichs
K
K
Department of Medicine, School of Veterinary Medicine, Tufts University, North Grafton, MA 01536.
Watson
E D
ED
Kenney
R M
RM
D000818:Animals; D003338:Corpus Luteum / Q000503:physiopathology*; D005260:Female; D006106:Granulosa Cell Tumor / Q000473:pathology / Q000503:physiopathology / Q000662:veterinary*; D006734:Horse Diseases / Q000473:pathology* / Q000503:physiopathology; D006736:Horses; D010051:Ovarian Neoplasms / Q000473:pathology / Q000662:veterinary*; D010053:Ovary / Q000473:pathology* / Q000503:physiopathology