Serum Free Light Chain Only Myeloma with Cytoplasmic IgM

Figure 2

Coronal and axial fused ¹⁸F-FDG PET/CT images. (a) Initial diagnosis of myeloma, multiple foci of metabolic activity. (b) Extension of lesions and new lesions following relapse. (c) Complete metabolic resolution of myeloma. (d) In initial diagnosis of myeloma, PET/CT image shows ¹⁸F-FDG avid lytic lesions sacrum and iliac bone involvement. (e) In relapsed myeloma, PET/CT image shows developed ¹⁸F-FDG avid iliac and sacral bone lesions. (f) After 10 months undergoing LEN/DEX therapy, PET/CT image shows complete resolution of the metabolic activity.

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