The uterotubal junction. A proposal for classifying its morphology as assessed with hysteroscopy.

Hysteroscopy was used to characterize the morphology of the uterotubal ostium (UTO). A comparison was made with the laparoscopic assessment of the tube in 86 infertile women. In addition, histology was performed on the UTO from women undergoing hysterectomy for cervical dysplasia. These comparisons revealed that the incidence of mucosal damage to the UTO is not related to that of adnexal adhesions unless the postinflammatory changes are severe. Most notable was the correlation between endosalpingeal hyperplasia and salpingitis isthmica nodosa.