Midgut malrotation commonly presents in the neonatal period, and rarely manifests its symptoms in adulthood with an estimated incidence of 0.2-0.5%. Nevertheless, the symptoms are non-specific with no strong pointers towards the clinical diagnosis. Consequently, the diagnosis is usually disclosed with imaging or surgery. We report a case of small bowel obstruction secondary to a congenital peritoneal band with underlying midgut malrotation in a 48-year-old man.
Incomplete intestinal fixation or malrotation of gut with midgut volvulus is one of the important causes of bilious vomiting in neonates. The incidence of malrotation of gut in population is 4% and that of duplication cyst is 1:4500. Patients with malrotation are prone to develop midgut volvulus due to their narrow mesenteric base demanding urgent surgical intervention. Common associated anomalies are intrinsic duodenal obstruction, internal hernias, caecal volvulus, anorectal malformations and Hirschsprung's disease. The present case refers to a 4-day-old neonate who presented with malrotation of gut with reverse volvulus and an associated gastrointestinal duplication cyst, which is a rare association with only few reported case reports. After imaging with ultrasound and contrast radiograph, the baby underwent prompt surgical intervention in the form of Ladd's procedure with resection and anastomosis of jejunal duplication cyst.