Hysterosalpingography in a 27-year-old woman with primary infertility of 5 years. The uterus is bicornuate with a low cervical communication and left atretic hemicervix. The cannula is located in the right hemicervix. The right external os is visible. Injection of contrast into the right hemicervix was noted to opacify the left hemiuterus and cervix through the low cervical communication (arrow) (16).