1. From the Departments of Radiology (K.N.D.P., F.D.K., R.O., V.V.), Nuclear Medicine (C.A.V.K., O.G., M.K.), Medical Oncology (O.B., P.W.), and Hematology (D.D., A.J., G.V.), University Hospitals Leuven, Belgium; and Department of Radiology, University Hospital of Brescia, Brescia, Italy (G.M.A.).