30-year-old female with right femur Ewing's with retroperitoneal metastases receiving chemotherapy, evaluate disease status. Patient underwent right proximal femoral resection with right total hip arthroplasty on December 2015. Components of a total hip arthroplasty with adjacent metal artifact limiting evaluation of the immediate surrounding structures. The previously seen mass in the right anterior thigh is not definitively visualized. There are postsurgical changes in the lateral soft tissues of the right upper thigh with a linear tract extending from the skin to the thigh musculature, specifically the vastus lateral and intermedius, which demonstrates low signal intensity on T1 and bright signal on T2 and heterogeneous enhancement. There is generalized mild fatty atrophy of the thigh musculature. Small enhancing right inguinal lymph nodes are unchanged.
Surgical changes related to a right total hip arthroplasty with likely postsurgical and mild inflammatory changes in the right lateral soft tissues and thigh musculature. Adjacent metal artifact limits evaluation of the immediate surrounding tissues, however there is no discrete mass identified.