Cystic colon duplication causing intussusception in a 25-year-old man: report of a case and review of the literature

A 25-year-old man presented with an acute abdomen and severe crampy abdominal pain. The clinical picture mimicked acute appendicitis. Transabdominal ultrasound examination revealed a 5 cm circular mass in the right upper abdomen. The ensuing computed tomography suggested an intussusception in the ascending colon. Intraoperatively, no full thickness invagination was detected. Due to a hard, intraluminal tumor a standard right hemicolectomy with ileotransversostomy was performed. The histopathological analysis revealed a cystic colon duplication leading to mucosal invagination and obstruction.In adults, colon intussusception is a rare event causing approximately 1% of all acute intestinal obstructions. Unlike its preferentially nonsurgical management in children, a bowel intussusception in adults should be operated because an organic, often malignant lesion is present in most cases.Colon intussusception and gastrointestinal duplications are diseases of young children occurring and/or becoming symptomatic usually within the first two years of life. The most typical site for colon intussusception is the ileo-ceacal region; similarly, gastrointestinal duplications most commonly affect the ileum. Surgery in case of intussusception is indicated, if bowel segments are at risk to become necrotic, with impending perforation and subsequent peritonitis [1]. Gastrointestinal duplications can manifest with signs of acute abdomen or acute bleeding, necessitating emergency surgery [2].A 25-year-old man presented with an acute abdomen with abdominal defence and rebound in the right lower quadrant and with severe crampy abdominal pain. The patient reported of blood mixed stool within the last four days. There was no history or family history of inflammatory bowel disease. A transabdominal ultrasound examination revealed an unclear circular mass with 5 cm diameter in the right upper quadrant. The subsequent CT-scan showed an invagination of the ascending colon with rectal contrast ene