Extraskeletal Myxoid Chondrosarcoma of Shoulder Joint-A Case Report and Literature Review

Abstract

Extraskeletal Myxoid Chondrosarcoma is a rare, soft tissue tumor with a characteristic histologic appearance. Most of the tumors occur in the extremities, and these tumors behave in a less aggressive manner than do other forms of chondrosarcoma. Surgery is the treatment of choice, and adjuvant radiotherapy or chemotherapy should be considered for cases that display a more cellular pattern, a less conspicuous myxoid matrix or distant metastasis happened. To our case, this soft tissue mass is originally misdiagnosed as a hematoma at local hospital, then the patient received the marginal excision and post-operative adjuvant radiotherapy later. But local recurrence and lung metastasis were noted one year later. Chemotherapy was suggested, but the patient refused due to the side effect. In addition, there are no roles of treatment with radiotherapy and chemotherapy, surgery is the first choice. This is the same as the reported literature. The rapid progression with metastasis and recurrence of this case is different from the literature review.