Gastrogastric Intussusception in an Adult Patient Without a Pathological Lead Point: A Case Report

Gastrogastric intussusception (GGI) is the rarest form of adult intussusception, frequently linked to an underlying pathological lead point. This report presents a case of GGI without a pathological lead point, possibly only the second such case in literature where a lead point was not present. A 57-year-old male underwent a successful ileostomy reversal following a low anterior resection for rectal carcinoma. Postoperatively, the patient experienced an acute onset of retching, vomiting, and inability to tolerate oral intake on the fourth postoperative day. Nasogastric tube placement was attempted, which was met with resistance, preventing its successful placement into the stomach. A contrast-enhanced computed tomography scan of the abdomen was subsequently performed, revealing the presence of GGI. An attempt at endoscopic reduction was made but proved unsuccessful. Following this, surgical reduction with gastropexy was undertaken.