Figure 10a. Subtle radiographic findings. (a) Frontal radiograph of the right femur in a 31-year-old woman with a 10-month history of right thigh pain was unremarkable. Because of the patient’s continued pain, whole-body bone scintigraphy was performed to rule out possible metastasis. (b) Anterior and posterior views of the whole-body bone scan reveal increased uptake in the midshaft of the right femur. (c) Coronal T1-weighted image (400/14) reveals two lesions in the marrow of the femoral shaft. No cortical erosion or soft-tissue mass was seen.