Ovarian remnant syndrome in a queen

Abstract

The remaining ovary syndrome is characterized by incomplete removal of the ovaries during castration, when the remaining tissue becomes functional. Although been already described in cats, its incidence is lower in these animals when compared to humans. This study aimed to report, in a feline, a case of remaining ovary syndrome. A one-year-and-seven-month-old cat had undergone ovariectomy. After five months of surgery, the animal presented signs of rut. The patient was examined. Then, vaginal cytology was held. Exploratory laparotomy was chosen. The cat was anesthetized and the surgery began, being the material obtained sent for histopathology. The cat had normal physiological parameters. The vaginal cytology showed a pattern consistent with estrus. Laparotomy presented ovarian residue in the left pedicle. Histopathology detected the presence of cysts and follicles in different stages of development, confirming the diagnosis of remaining ovary syndrome. Though rarely reported in the feline species, this reproductive pathology diagnosis and treatment is relatively simple. Keywords: Castration, ovarian tissue, recurrent estrus, Felis catus.