1. From the Departments of Abdominal Imaging (M.S., S.J., M.P., T.L.S., P.B., S.C.F.), Pathology (C.T.C.), Dermatology (C.T.C.), and Melanoma Oncology (J.M.), The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Houston, TX 77030-4008; and Department of Radiology, The University of Florida College of Medicine, Jacksonville, Fla (S.E.).