Ewing sarcoma, restaging Note that the evaluation of the femur is severely limited secondary to the presence of a femoral endoprosthesis and hip arthroplasty.The surgical changes in the lateral soft tissues of the right upper thigh with a linear tract extending from the skin to the the vastus lateral and intermedius are again observed. There is persistent low signal intensity on T1 and bright signal on T2 although the extent of T2 hyperintensity within the musculature again appears slightly improved from the prior exam. There is persistent heterogeneous enhancement of the left thigh without discrete mass. The fullness of the lateral thigh, thought to be related to muscular herniation or scarring, is similar to the prior exam. There is generalized mild fatty atrophy of the thigh musculature which is similar to the prior exam.
Within the limits of the exam, there is no discrete enhancing mass or definite evidence of recurrence where evaluation is available.