Intestinal obstruction due to congenital bands in adults who have never had abdominal surgery Two case reports and a review of the literature.

Congenital abdominal bands are a very rare entity and are often silent for a person's entire life. In a very few circumstances, however, they can manifest with clinical symptoms. Diagnosis of these bands is very challenging as the patient has never submitted for abdominal surgery and imaging, laboratory tests and clinical examination can be silent or unspecific. Two patients were admitted to and operated on in our hospital between June 2017 and July 2018. All patients had a bowel obstruction at the time of presentation, presenting no emission of faeces or gas. Conservative therapy was tried in one case, and surgical intervention was required. At surgery, both patients were found to have congenital bands causing the occlusion. The postoperative courses were uneventful. Small bowel obstruction (SBO) by congenital bands remains a challenging disease for surgeons. Diagnosis of SBO has to be suspected even if radiology does not indicate any relevant features. Laparoscopy should be the preferred approach, but if not feasible, then open surgery can resolve the case. KEY WORDS: Adhesions, Congenital bands, Intestinal occlusion, Laparoscopy.