Pictorial Interlude: caught up in a 'whirl'.

S Afr J Surg

Department of Diagnostic Radiology, University of the Witwatersrand, Johannesburg.

Published: March 2012

A patient with the 'whirl sign' on computed tomography (CT) is 25.3 times as likely as a patient without to have small-bowel obstruction (SBO) necessitating surgery. There is therefore an important role for the 'whirl sign' in assessment of patients with clinical and radiological signs of SBO.

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