1. From the Department of Radiology, Naval Medical Center Camp Lejeune, Camp Lejeune, NC (M.H.L.); Departments of Radiology (M.G.L., P.J.P.) and Dermatology (J.K.P., M.A.H.), University of Wisconsin School of Medicine and Public Health, Madison, Wis; Department of Radiology, Mayo Clinic, Scottsdale, Ariz (C.O.M.); and Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, Pa (M.S.L.).