“…4 Intussusception of the proximal small bowel, especially with the intussusceptum and intussuscipiens isolated to the duodenum, is a rare condition with only 16 reported cases in the literature occurring in 19 total patients (Table 1). 1,2,[4][5][6][7][8][9][10][11][12][13][14][15][16][17] Typically, the anatomic position of the duodenum in the retroperitoneal space and its fixed attachments in this region serve to prevent it from being susceptible to intussusception. However, this condition can occur due to a lead point such as a mass (90% of adults cases) 18 or secondary to congenital malrotation of the bowel, where the duodenum is more mobile, allowing the intussuception to occur.…”