Unilateral ovarian absence in two capuchin monkeys.

BACKGROUND: Ovarian absence is a rare condition with congenital or traumatic origin. METHODS: Gross and microscopic examination of two capuchin monkeys were performed. RESULTS: Case 1 had absence of the right ovary and distal uterine tube, bilateral absence of fimbriae, and a rudimentary uterus. Case 2 had unilateral ovarian absence, but a functional contralateral ovary, and a normal uterus. CONCLUSIONS: Unilateral ovarian absence was confirmed in two capuchin monkeys for the first time.