"Venous cut-off sign" as an adjunct to the "whirl sign" in recognizing acute small bowel volvulus via CT scan.

INTRODUCTION: A young adult patient was admitted for signs and symptoms of acute abdomen.

MATERIALS AND METHODS: Urgent CT scan was performed and small bowel volvulus was confirmed. The "whirl sign" diagnostic of small bowel volvulus was present.

RESULTS: Furthermore, the accompanying superior mesenteric vein was noted to be truncated at the point of torsion.

CONCLUSION: The "venous cut-off sign" can be a useful adjunct sign to the diagnosis.