53-year-old female with undifferentiated connective tissue disease, recurrent myalgia and weakness. Evaluate for myositis. Signal intensity of the musculature of the right thigh appears normal. We see no enhancement, edema, or frank atrophy. Intermediate signal intensity within the proximal femora and obturator rings bilaterally likely represents residual red marrow. On the large field-of-view coronal STIR sequence, there is edema-type signal in the left obturator internus muscle which is nonspecific.
1.Normal-appearing right thigh musculature.2.Mild edema-type signal of the left obturator internus muscle is nonspecific.