Omphalomesenteric Ducts and Urachal Remnants: A Retrospective Study and Case Series

Purpose: The management strategies for umbilical disorders remain undefined. This study aims to review our experience and propose a management algorithm for symptomatic urachal and omphalomesenteric duct anomalies. Methods: We retrospectively reviewed medical charts between January 2013 and September 2017 of 28 patients with clinical concern for umbilical disorders, out of which 10 were diagnosed with omphalomesenteric duct remnants (OMDR) or urachal remnants (UR). We assessed patients' sex, age at operation, initial presentation, imaging findings, surgical approach, histopathological findings, and prognostic outcome. Results: Among 10 patients with OMDR or UR, initial presentations were omphalitis in four, umbilical discharge in three, abdominal pain in two, and umbilical mass in one. Ultrasonography (US), computed tomography (CT), magnetic resonance imaging (MRI), and voiding cystourethrography were performed in 10, seven, three, and four patients, respectively. Transumbilical extraperitoneal excision from a small expanded umbilical incision and laparoscopic approach combined with transumbilical excision was performed in eight and two patients, respectively. Postoperative wound infection occurred in 10% of patients. Discussion and conclusion: Ultrasonography was mostly used as an initial diagnostic modality, and in cases in which there were signs of infection, they were drained adequately; CT/MRI was chosen for further evaluation of suspicious cases for other complications. Thus, we recommended surgical excision in cases with persistent umbilical disorders. The umbilical approach displays good cosmetic results with easy, complete excision, and the laparoscopic approach could be an excellent diagnostic and therapeutic method for the management of complicated conditions.