Browse the corpus

Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

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©2013 UpToDate ® Print Email Annular pancreas Axial image from an abdominal CT scan showing the annulus encircling the duodenum (arrow). Courtesy of Dr. Darren Brennan, Department of Radiology, Beth Israel Deaconess Medical Center.