Fig. 2.
A 60-year-old female with malignant melanoma. Time frame between MRI and 18FDG-PET was only 4 days. a18FDG-PET reveals multifocal bone marrow involvement due to metastatic disease in the lumbar spine. b MRI demonstrates multifocal bone marrow infiltration due to metastatic disease in the lumbar spine and at level S1. (left T1-weighted image, right STIR image)