STIR images before and after bone marrow transplantation in a middle-aged man with multiple myeloma and a focal pattern of bone marrow involvement. Pretransplant STIR (2500/20/160, TR/TE/TI) coronal MR image of the pelvis (A) shows multiple bright foci (arrows) in the pelvic bones. Posttransplant STIR (2500/20/160, TR/TE/TI) image (B) shows a decrease in the size and number of the lesions. Courtesy of E.J.C. Angtuaco, MD (University of Arkansas for Medical Sciences, Little Rock, AR).