Pediatric Organoaxial Gastric Volvulus

Etiology: diaphragmatic defect, stomach twists on its mesentery
Imaging: stomach is rotated along its long axis resulting in mirror image of normal anatomy with reversal of the greater and lesser curvatures

Radiology Cases of Organoaxial Gastric Volvulus

Upper GI of organoaxial gastric volvulus — Early AP (above left) and later AP (above right) and lateral (below) images from an upper GI shows rotation of the stomach along its long axis with reversal of the greater and lesser curvatures of the stomach.

Upper GI of organoaxial gastric volvulus and hiatal hernia — Early AP (above left) and later AP (above right) and lateral (below) images from an upper GI shows rotation of the stomach along its long axis with reversal of the greater and lesser curvatures of the stomach. The stomach is also noted to have slid through the esophageal hiatus into the chest.

Upper GI of organoaxial volvulus — AP image from an upper GI shows rotation of the stomach along its long axis with reversal of the greater and lesser curvatures of the stomach.