PMC3700476_01
AP radiograph of the pelvis at presentation showing the left hip joint in external rotation, abduction and mild flexion.
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The plain radiograph of the hip and pelvis revealed normal contour, joint space, and alignment, with no soft-tissue abnormalities, but the left hip was in abduction, flexion, and external rotation (Figure 1).
T1 weighted image MRI, with IV gadolinium of the pelvis at the level of the greater trochanter showing edematous changes in the obturator internus muscle (star) along with central necrosis (arrow) with ring enhancement suggestive of pyomyositis
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MRI (Figures 2 and 3) was requested to rule out osteomyelitis of the proximal femur, pelvic collection, or sacroiliitis.
T1 weighted image MRI, with IV gadolinium of the pelvis at the level of the lesser trochanter showing edematous changes in the obturator externus muscle (star) along with central necrosis (arrow) suggestive of pyomyositis.
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MRI (Figures 2 and 3) was requested to rule out osteomyelitis of the proximal femur, pelvic collection, or sacroiliitis.