True versus Pseudo-Intestinal Malrotation: Case Series and Review

Intestinal malrotation is an anomaly of fetal intestinal rotation that can present with symptoms after birth or in early childhood, but is rarely diagnosed in adults. Patients who have symptomatic presentations require surgery. Other entities may mimic intestinal malrotation and respond to non-surgical management. We present 2 adult cases with the radiological diagnosis of intestinal malrotation: one with true malrotation presenting as a duodenal mass, and another with “pseudo-malrotation” due to altered anatomy. These cases illustrate the importance of recognizing and differentiating these rare adult presentations of true malrotation from “pseudo-malrotation” in regards to their acute management.