1 | INTRODUCTION
Synovial sarcoma is a relatively rare soft tissue malignancy, accounting
for about 10% of primary soft tissue
sarcomas[1].
The occurrence of the disease is mostly located around the proximal
joints of the limbs, some of which occur in the head, face and viscera.
Multiple metastases other than lung and bone are
rare[2]. Today, more than half of the patients
live for more than 5 years after treatment[3].
However, a few patients progress rapidly, even almost without treatment
opportunity.