synovial sarcoma

(sih-NOH-vee-ul sar-KOH-muh)
A type of cancer that usually forms in the tissue around the joints in the arms or legs. It may also form in the trunk (chest and abdomen), or the head and neck and it may spread to the lungs, bones, and lymph nodes. Synovial sarcoma usually occurs in children and young adults. It is a type of soft tissue sarcoma.