Adult-Onset Midgut Volvulus Due To Intestinal Malrotation: Case Report and Literature Review

Introduction Intestinal malrotation is a congenital anomaly found in 0.2%–1% of the population, posing various clinical challenges 1. Intestinal malrotation occurs when there is incomplete rotation of the midgut by 270 degrees counterclockwise around the superior mesenteric vessels during embryonic development 1. This condition leads to positioning of distal duodenum and jejunum to the right side of the columna vertebralis in affected individuals 2. The narrow-based mesentery that is associated with arrested midgut rotation increases the likelihood of twisting of midgut, potentially predisposing to obstruction and necrosis. The majority of cases (60–80%) manifest as an acute surgical emergency, most commonly due to midgut volvulus during the neonatal period.