1. From the Departments of Radiology (M.S., A.L., N.K.), Histopathology (A.B.), General Surgery (T.D.Y.), and Gastroenterology (R.K., S.K.S.), PGIMER, Chandigarh, India; and the Abdominal Imaging Section, Department of Medical Imaging, The Ottawa Hospital, University of Ottawa, Ottawa, Ont, Canada (S.K., S.N., A.M.S.).