14-year-old male with soft tissue sarcoma of the left thigh status post resection. Evaluate for disease recurrence.EXAMINATION: MRI left femur without and with IV contrast 12/14/2016 There is near complete interval resolution of linear enhancement along the surgical bed within the rectus femoris and left vastus lateralis muscles. Again noted are foci of susceptibility artifact in the subcutis tissues as well as within the muscles. There is associated minimal enhancement with correlative subtle T2 signal hyperintensity in the rectus femoris and medial aspect of the vastus lateralis muscles adjacent to the surgical bed. There is no evidence of tumor recurrence.The underlying femur is normal.
1.Evolution of postsurgical changes in the soft tissues of the anterior thigh without evidence of tumor recurrence.2.Increased T2 signal intensity and subtle enhancement of the rectus femoris and medial aspect of the vastus lateralis adjacent to the surgical bed is nonspecific and raises question of myositis.