Male 19 years old Reason: 19-year-old male with history of NK/T-Cell Lymphoma with history of R hip effusion and chronic osteomyelitis History: R hip osteomyelitis now s/p12 weeks of antibiotic therapy BONE MARROW: Right hip: Larger geographic territory of predominantly hypointense T1 and hyperintense T2 lesion of the right femoral head still extending to the femoral neck. Persistent slight irregularity of the articular surface of the femoral head with no evidence of subchondral collapse. Previous described lesions of the femoral head and neck on the right hip enhances with contrast administration. There is a focus of peripheral increased signal with loss central signal after administration of contrast of the right trochanter (image 15, series 1301).Left hip: Stable appearance of chronic appearance of avascular necrosis of the left femoral head. There is a focus of peripheral increased signal with loss central signal after administration of contrast of the left trochanter (image 18, series 1301)SOFT TISSUES: Interval resolution of changes previously described of the right iliopsoas muscle. JOINTS: Interval improvement in right-sided joint effusion.ADDITIONAL
Interval resolution of right hip joint effusion and iliopsoas muscle changes.Increasing in the size of the right femoral head lesion consistent with evolving avascular necrosis.Stable appearance of left femoral head chronic avascular necrosis.Possible small focus of residual osteomyelitis in both trochanters.