Hemoperitônio causado por ruptura de luteoma e tecoma em uma égua

Abstract

Ovarian tumors occur in all domestic animal species, however, some types are relatively uncommon. Luteoma and tecoma are different neoplasms, originating from corpus luteum and teak cells, respectively. The aim of this study was to report a case of hemoperitoneum caused by rupture of luteoma and tecoma in a twenty-year-old Quarter Horse mare, four months pregnant, who underwent a necropsy with a history of colic, abdominal discomfort, restlessness and death. two hours after clinical signs. Significant macroscopic findings were observed in the abdominal cavity, which had large amounts of blood and clots on the serosa, characterizing hemoperitoneum. In addition, the ovaries presented increased volume, multilobulated surface and one with rupture of five centimeters, with clots attached. Through histopathological evaluation, two neoplasms were diagnosed in both ovaries, which corresponded to luteoma and tecoma, and confirmed by immunohistochemical examination (IHC). Therefore, it is concluded that the diagnosis of these tumors is only possible through histopathological evaluation and positive cytoplasmic immunostaining of neoplastic cells through immunohistochemistry.