Fig. 2. Initial thigh T2 magnetic resonance image (MRI) showing a 12×6×4 cm sized heterogeneous low signal intensity lesion in the proximal portion of the vastus lateralis muscle (A). Fluorodeoxyglucose (FDG)-positron emission tomography (PET) scan showing high uptake of FDG in the right thigh and diffused uptake in the BM of the entire skeleton (B).