“…In general 1-4 these neoplasms behave aggressively and are associated with a high local recurrence rate, up to 21 to 29%, as well as the potential to metastasize. 1,2,5 Factors that can be associated with local recurrence include low postoperative radiation doses and large tumor bulk. 1 The most common site of distant metastases are the lungs (58%), lymph nodes (33%), liver (22%), bone (17%), and skeletal muscle (9%).…”