Patient with AML, now presents with worsening low back pain for one month. Status post bone marrow transplant, left iliac crest. Extensive marrow replacement is observed bilaterally in a largely symmetric pattern involving both the pelvis and proximal femurs. Pattern and signal abnormality consistent with patient's underlying known AML and marrow replacement. No discrete focal marrow or osseous abnormalities observed other than a small faint biopsy track observed in the posterior left iliac crest correlating with the known previously described marrow sampling.Mild degenerative changes of both hips and SI joints without evidence of superimposed acute or subacute abnormalitySurrounding musculature and compartments are otherwise intact without evidence of complication or superimposed focal abnormality. Vasculature unremarkable. The demonstrated is the anterolisthesis involving the lower lumbar upper sacrum described more detail on the concomitant lumbar spine imaging; please correlate.Intrapelvic contents are also unremarkable. No distinct lymphadenopathy
No superimposed acute or subacute additional abnormality observed outside of the lower lumbar spine findings described on the concomitant exam. Extensive marrow replacement compatible with known AML and treatment.