1. From the Department of Radiology, Divisions of Abdominal Imaging and Nuclear Medicine, University of Minnesota (M-Health), 420 Delaware St SE, Minneapolis, MN 55455 (P.P.); and the Department of Pathology (B.W.); Department of Radiology (R.J., A.P.), Divisions of Nuclear Medicine (M.C.M.) and Abdominal Imaging (B.M.), University of Washington, Seattle, WA.