67-year-old male with left hip pain in the setting of metastatic prostate cancer. ACETABULAR LABRUM: Although this examination was not protocoled for evaluation of the acetabular labrum, no discrete labral tear is evident.ARTICULAR CARTILAGE AND BONE: Note is made of increased curvilinear/serpentine signal abnormality within the femoral heads bilaterally consistent with avascular necrosis, left greater than right. There is associated increased signal abnormality on fluid sensitive sequences within the left femoral head/neck junction which likely represents the sequela of the aforementioned AVN. There is a small bilateral hip effusions which may be related to the aforementioned AVN. There is curvilinear enhancement in the left femoral head/neck junction on postcontrast sequences in a pattern suggestive of AVN. No additional foci of enhancing signal abnormality are identified to suggest osseous metastatic disease.SOFT TISSUES: No significant abnormality noted. No focal mass lesions are identified.ADDITIONAL
Findings most consistent with bilateral avascular necrosis of the femoral heads, left greater than right.