Diagnosis and Treatment of a Large Periovarian Leiomyosarcoma in a Female Dog

Resumo

Periovarian leiomyosarcomas in female dogs are rare pathologies and generally have a poor prognosis. We present a case of a 10-year-old intact female dog. The dog presented for consultation due to abdominal discomfort, lethargy, and acute-onset anorexia. Abdominal radiographs and an AFAST were performed, revealing a mass effect. An exploratory laparotomy was conducted, and a large mass (15 cm x 20 cm) was observed in the right ovarian region. A total ovariohysterectomy was performed with excision of the mass, which appeared to involve the right ovary. Histopathological examination revealed that it was a leiomyosarcoma located in the periovarian tissues, of large dimensions, without ovarian involvement. In the literature, we found no other cases with similar dimensions. Surgery proved to be a therapeutic solution, yielding positive results, with the animal having a good quality of life three months after the postoperative follow-up.