Editor’s note: In this recurring feature, we first present a series of images (this page) for your review, and then a brief discussion of the findings and diagnosis (p. 63). Before you turn to the discussion, examine these images carefully and draw your own conclusions.
History
For the discussion, click here.
A 55-year-old man on chronic hemodialysis presents with left hip pain. Radiographic (see Figure 1) and magnetic resonance images (see Figures 2 and 3) were obtained.

Figure 1: Anteroposterior (AP) radiograph of the left hip.

Figure 2: Coronal STIR (water-sensitive) MR image of the pelvis.

Figure 3: Sagittal T2-weighted MR image of the left hip.
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