62-year-old female with mild new proximal muscle weakness, carries diagnosis of amyopathic dermatomyositis, evaluate for muscle inflammation Right: There has been progressive atrophy of the visualized pelvic and thigh muscles. Fatty infiltration of the gluteal muscles and vastus lateralis. Small joint effusion. There is no abnormal signal within the visualized pelvis or thigh musculature to suggest an inflammatory or infectious process. The subcutaneous tissues are within normal limits. Normal bone marrow signal intensity.Left: There has been progressive atrophy of the visualized pelvic and thigh muscles. Fatty infiltration of the gluteal muscles and vastus lateralis. Small amount of joint fluid. There is no abnormal signal within the visualized pelvis or thigh musculature to suggest an inflammatory or infectious process. The subcutaneous tissues are within normal limits. Normal bone marrow signal intensity.
No evidence of myositis. Progressive atrophy of the muscles of the pelvis and thigh.