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Internal hernia after laparoscopic Roux-en-Y gastric bypass (LRYGB) surgery can lead to acute small bowel obstruction or chronic recurrent abdominal pain. We present two cases of internal hernias after antecolic antegastric LRYGB. Both patients presented to the emergency room with acute diffuse abdominal pain. Other than that, a physical examination and routine laboratory workup did not reveal any pathological finding. An abdominal CT was performed in both cases. It showed mesenteric torsion as a sign of internal hernia in one case, but remained inconclusive in the other patient. Immediate diagnostic laparoscopy was performed in both cases. Intraoperatively, both patients revealed an internal hernia, where the common channel herniated through the mesojejunal space. The conversion to upper median minilaparotomy was necessary for hernia reduction in both cases. No bowel resection was required and both patients recovered fully.

Two similar cases of internal hernia after laparoscopic Roux-en-Y gastric bypass surgery