<prompt> All of the following statements about synovial cell sarcoma, are true, except.Originate from synovial liningOccur more often at extra-articular sitesUsually seen in patients less than 50 years of ageKnee and foot are common sites involved  <response>: a Originate from synovial lining- The term synovial cell sarcoma is however a misnomer as synovial cell sarcomas do not arise from synovium.- Most synovial sarcomas are extra-articular and only less than 10 are intraarticular.Synovial cell sarcoma does not arise from synovial liningThe term synovial sarcoma is a misnomer. The term originates from the histological appearance of cells which can resemble synovial cells. These tumors, however, do not arise from synovial tissue. 