1. From the Department of Radiology (S.G., P.W., S.M., C.C.C., J.R., M.I., P.M.K.), Department of Medicine II (C.S.), and Department of Pathology (T.K.), University Hospital, LMU Munich, Marchioninistr 15, 81377 Munich, Germany; and Radiologie München, Munich, Germany (A.G.).