Pinna, Aline E.Okada, Carolina T. C. [UNESP]Ferreira, Camila S. C.Campos, Diego G.Possidente, Karen S.de Cássia C. L. Morais, RitaOliveira, MarcelaSalomão, Marcia CarolinaHataka, Alexandre [UNESP]2019-10-062019-10-062019-06-01Reproduction in Domestic Animals, v. 54, n. 6, p. 912-916, 2019.1439-05310936-6768http://hdl.handle.net/11449/187573Ovarian tumours in mares represent 2.5% to 6% of the most frequent neoplasms found in the equine species, with a higher chance of benignity. This study aims to describe a case of two different tumours found in the same ovary of a mare that presented clinical signs of suppressed oestrous cycle during 5 years. After unilateral ovariectomy, the ovary was sent to the histopathology examination which determined a mixed tumour of granulosa cell and leiomyosarcoma. After treatment, the mare returned to oestrus and got pregnant in the next season.912-916enganestrusequinehistopathologyhormonereproductionArtigo10.1111/rda.13433Acesso restrito2-s2.0-85064519707