Background: Tubal and peritoneal disease are the most com- mon causes of infertility and can be either congenital malfor- mation or acquired, proximal or distal, unilateral or bilateral and transient (obstruction) or permanent (occlusion). Materials and Methods: The current methods of tubal patency assessment include laparoscopy, fluoroscopy, sonohysterogra- phy and hysterosalpingography. Although laparoscopy is the modality of choice for investigation of tubal patency and pelvic structure in many infertility centers, hysterosalpingography is still the gold standard for evaluation of tubal lumen and pro- vides useful information about size, contour and anatomy of the inner surface of the fallopian tubes. Results: Here we present the case series of congenital and ac- quired structural abnormalities of the proximal tubal pathology proven on HSG. We believe that one of these developmental defects have not been addressed in preceding medical texts. Conclusion: Accurate diagnosis and reports of such cases are important not only for the benefit of treatment, but also to es- tablish the true incidence of these anomalies and to consolidate embryologic concept.