<prompt> Which of the following is not true about synol sarcoma? NOT RELATED -OHOIt does not arise from synoviumIt occurs more common at extraaicular sitesIt is seen at 50 yrs of ageKnee and foot are common sites involved  <response>: SYNOL SARCOMAa. Unrelated to the synoviumb. Histologic resemblance of synol cellsi. 2 types: monophasic, biphasicc. Fusion of genes between chromosome 18 and X chromosome - tX,18d. Age distribution: average age 35e. Presentation: Pain associated with deep-seated massf. The histologic hallmark of synol sarcoma is the biphasic morphology of tumor cellsg. t x, 18 is characteristic of synol sarcoma.h. 4th most common soft tissue sarcomai. Location: Most commonly located around the kneej. Usually occurs within 7 cm of joint, but usually is not intra-aicular only 10intraaiculark. Treatment: Wide resection with chemotherapy, especially with poorly differentiated lesions.l. Sensitive to Ifosfamide regimes 