Vaginal scan for identifying endometrial abnormalities: limitations in clinical management.

It is generally recognized that an endometrial thickness of 4-8 mm is considered a definite cutoff point for detection of endometrial malignancy by transvaginal sonography. We report on 2 patients with endometrial cancer and on 1 with endometrial hyperplasia, in each of whom endometrial thickness was < 4 mm.