Suspected solitary plasmacytoma: A 75-year-old presenting with pathological fracture of the right mid-clavicle, presumed to be a solitary plasmacytoma on standard skeletal survey (a, black arrow). FDG PET/CT (b, c, d, e, f) detected additional lesions in the thoracic spine lytic on CT and left femur, occult on CT (white arrows). FDG, fludeoxyglucose, PET, positron emission tomography.