Image-Guided Radiation Therapy in Treating Patients With Primary Soft Tissue Sarcoma of the Shoulder, Arm, Hip, or Leg

Up to 6 courses of investigator's choice of neoadjuvant, adjuvant, concurrent, or interdigitated chemotherapy

Preoperative IGRT (3D-CRT or IMRT): If receiving neoadjuvant or adjuvant chemotherapy or no chemotherapy: 50 Gy (2 Gy once a day, 5 times a week). If receiving concurrent or interdigitated chemotherapy: 44 Gy (2 Gy once a day, 5 times a week). Postoperative radiotherapy boost for patients with positive margins following surgery: 16 Gy (2 Gy once a day, 5 times a week) external beam radiation therapy or 16 Gy at ≤ 80 cGy per hour brachytherapy or 3.4 Gy/fraction in 4 fractions brachytherapy or 10-12.5 Gy in a single fraction intraoperative radiation therapy boost.

Resection of the sarcoma with the goal of having negative pathologic margins. Every effort should be made to have limb preservation surgery unless there is documented evidence of tumor progression that would require amputation for an appropriate negative margin resection. All lesions of the extremities should be treated with wide excision.