abdominal wall synovial sarcoma, a rare presentation

Synovial sarcoma is a malignant mesenchymal neoplasm which com- monly arises in the extremities of adults, in close association with joint capsules. only a few cases of synovial sarcoma occurring in the abdominal wall have been reported. we report an extremely rare case of monophasic synovial sarcoma of abdominal wall in a 58-year-old woman who had presented with painless left ante- rior abdominal wallmass. the patient underwent excisional surgery. histological andimmunohistochemistry examinations revealed monophasic synovial sarcoma. base onthe diagnosis, the patient received chemoradiation.primary synovial sarcoma is rarelyfound in the anterior abdominal wall. but, it should be included in the differentialdiagnosis.