[Echographic aspects of midgut malrotation with volvulus in the newborn infant].

Six neonates with midgut malrotation and volvulus were explored with ultrasonography before surgery. In each case, ultrasound detected an abnormal position of the superior mesenteric vein with regard to the superior mesenteric artery, indicating a midgut malrotation. In 4 patients, a propeller-like image was present around the superior mesenteric axis, demonstrating an associated volvulus. In 2 patients, there was a tumor-like presentation of the volvulated small intestine. Compared to the intestinal opacification, ultrasound seems to be a simple and rapid method to explore the neonate with vomiting or acute abdomen.