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<bold>FIG. 6.44.</bold> Magnetic resonance imaging appearance of avascular necrosis. A: Transverse T<sub>1</sub>-weighted image of a patient (supine) with hip pain on long-term steroid therapy for lupus erythematosus shows nonspecific marrow edema (<italic>arrow</bold>) in the left femoral head (<italic>f</bold>). The location and clinical context of this finding are suggestive of avascular necrosis, but the imaging appearance is otherwise nonspecific. <italic>a</bold>, acetabulum; <italic>b</bold>, bladder. Sagittal T<sub>1</s...
<bold>FIG. 6.44.</bold> Magnetic resonance imaging appearance of avascular necrosis. A: Transverse T<sub>1</sub>-we...