title: Serous cystadenoma in a normally cyclic mare with high plasma testosterone values.
abstract: Serous cystadenoma was diagnosed by histologic examination of a large ovary removed from a 16-year-old Thoroughbred mare with normal estrous cycles. Palpation and ultrasound examination per rectum had revealed an excessive number of follicles in the right ovary. The ovulation fossa was palpable on the right ovary, and the left ovary appeared to have normal activity. Plasma testosterone values were high at the time of examination (0.15 ng/ml), but decreased to normal values (0.09 ng/ml) after removal of the cystadenoma.
authors.affiliation: Section of Reproductive Studies, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348.
authors.forename: K
authors.initials: K
authors.lastname: Hinrichs
authors.forename: G S
authors.initials: GS
authors.lastname: Frazer
authors.forename: R V
authors.initials: RV
authors.lastname: deGannes
authors.forename: D W
authors.initials: DW
authors.lastname: Richardson
authors.forename: R M
authors.initials: RM
authors.lastname: Kenney
mesh_terms: D000818:Animals; D003537:Cystadenoma / Q000097:blood / Q000662:veterinary*; D003937:Diagnosis, Differential; D004971:Estrus; D005260:Female; D006734:Horse Diseases / Q000097:blood*; D006736:Horses; D010051:Ovarian Neoplasms / Q000097:blood / Q000662:veterinary*; D013739:Testosterone / Q000097:blood*
chemical_list: D013739:Testosterone