The significance of the postmenopausal simple adnexal cyst.

In order to help clarify the clinical problem of the postmenopausal woman with an adnexal cyst, 13 patients with sonographically detected relatively simple adnexal cysts were reviewed. Only one patient had a "borderline" malignancy; the remaining cysts were all benign. The 8 per cent malignancy rate in this small series suggests that the simple postmenopausal adnexal cyst may not necessarily be an ominous finding.