Ten guinea pigs with an ovarian cyst had clinical signs of anorexia, alopec
ia, or depression. Ultrasonographic features of the 2- to 3-cm diameter flu
id-filled cysts included compartmentalization and connection to the ovary.
In tao animals, a unilateral cyst was present, and in two others, the cysts
were bilateral, Diagnosis of the disease by plain radiography is difficult
because of the similar opacity of ovarian cysts, abdominal neoplasms, and
trichobezoars.