Hysterographic evidence of polypoid filling defects in the uterine cavity.

According to earlier studies, radiographic evidence of polypoid filling defects in the uterine cavity has a physiological background if hysterography is carried out during the secretory phase of the menstrual cycle, but if performed during the proliferative phase, the defects indicate endometrial hyperplasia. This view was not confirmed in the present investigation. Of 8,000 hysterograms reviewed, 200 (2.5%) showed filling defects. Of these, 162 hysterograms were from cases in which the coexisting histological appearance of the endometrium was available; 78% of the histological examinations showed no abnormalities. There was no difference between the secretory and proliferative phases in this respect, and no correlation between radiographic evidence of polypoid filling defects and abnormal uterine bleeding.