Stomach, duodenum, jejunum and most of the ileum are dilated and fluid-filled, with abrupt transition at distal ileum located in the suprapubic region. Whirl sign present with swirling appearance of vessels at the small bowel mesentery. Short segment of radially distributed dilated mushroom shaped / U shaped loops seen near to the transition point where mesenteric oedema seen. Double-beak sign at the transition point. This abnormally shaped distal ileum has reduced bowel wall and mucosal enhancement compared to the rest of bowel loops.
The distal bowel loops (short segment of distal ileum and large bowel loops) are collapsed.
No pneumoperitoneum, intramural gas or portal venous gas. Minimal ascites.
Incidental finding of L4 vertebral plana with generalized osteopenic bone.