Figure 1.

Display of a patient (patient #11) with a history of Ig G λ MM after autologous stem cell transplant who was referred due to still low but rising serum free light chains. Whereas PET/CT with FDG did not depict hypermetabolic intra- or extramedullary foci suspicious for active MM, MET demonstrated inhomogenous, focally increased tracer uptake of the axial (transaxial slice of thoracic vertebra Th 8, arrows) as well as appendicular skeleton (maximum intensity projection). Bone marrow biopsy confirmed low tumor cell burden of 5%.