myxofibrosarcoma

A rare type of cancer that forms in fibrous (connective) tissue, usually in or just under the skin of the arms and legs. There may be more than one tumor, and it sometimes spreads to nearby tissue or to other parts of the body. Myxofibrosarcoma may also recur (come back) after treatment. It may occur in children, but is most common in older adults. It is a type of soft tissue sarcoma.