Clinical findings of the coexistence of an extraluminal vaginal leiomyoma with ovarian cystadenoma in a dog

In this report, we present a case of a dog diagnosed with both vaginal leiomyosarcoma and ovarian cystadenoma, which occurred concurrently with perioperative clinical findings. A twelve-year-old intact Siberian Husky bitch was brought to our clinic due to constipation and urination difficulties, attributed to a perineal mass that had been present for approximately one month. Although no tissue mass was visible protruding from the vagina, perineal swelling is remarkable, and the dog exhibited mild leukocytosis and anemia. Vaginal cytology showed densely keratinized superficial cells indicating high estrogen levels. Ultrasonography of the perineal and abdominal areas revealed a solid mass without internal blood flow, besides numerous cystic reflections in the left ovary. In surgery, after removing the two solid masses with episiotomy, the ovariohysterectomy was performed. Histopathological examination confirmed the diagnoses of vaginal leiomyosarcoma and ovarian cystadenoma. Following the operations, the patient regained normal urination and defecation and also recovered without complication and no recurrence.