title: Ovarian teratoma and granulosa cell tumor in two mares.
abstract: Simultaneous and successive occurrence of ovarian teratoma and granulosa cell tumor is reported in 2 mares. Simultaneous occurrence of the tumors may obscure clinical diagnosis. Whereas size, unilaterality, and the cystic nature of each may be similar, differentiating features include the potentially palpable presence of bone, cartilage, or teeth in teratoma, and the hormone-induced behavioral and reproductive effects of granulosa cell tumors. Thorough examination of surgical specimens may reveal the existence of a neoplastic process, previously obscured by the more obvious presence of another.
authors.affiliation: College of Veterinary Medicine, Oklahoma State University, Stillwater 74078.
authors.forename: R J
authors.initials: RJ
authors.lastname: Panciera
authors.forename: S A
authors.initials: SA
authors.lastname: Slusher
authors.forename: K E
authors.initials: KE
authors.lastname: Hayes
mesh_terms: D000818:Animals; D005260:Female; D006106:Granulosa Cell Tumor / Q000473:pathology / Q000503:physiopathology / Q000662:veterinary*; D006734:Horse Diseases / Q000473:pathology* / Q000503:physiopathology; D006736:Horses; D009378:Neoplasms, Multiple Primary / Q000473:pathology / Q000503:physiopathology / Q000662:veterinary*; D010051:Ovarian Neoplasms / Q000473:pathology / Q000503:physiopathology / Q000662:veterinary*; D012726:Sexual Behavior, Animal; D013724:Teratoma / Q000473:pathology / Q000662:veterinary*