Cholescintigraphy for Differentiation of True Duodenal Obstruction from Pseudo Obstruction.

Small-bowel obstruction is a fairly common cause of abdominal pain. Differentiating between true duodenal obstruction and pseudo obstruction is important given differing treatment strategies. Here, we present augmentation of a hepatobiliary scan with a small amount of oral liquids and delayed imaging to differentiate between these two entities.