7.P.45 SYNOVIAL SARCOMA OF THE SHOULDER – CASE REPORT

Synovial cell sarcoma is one of the most common soft tissue tumours. Prognosis of this tumour is related to initial care. Survival rates have improved in the past 20 years because of treatment with primary radical surgery, along with chemotherapy and radiation. This case report is about a woman, of 68 years old, with a left shoulder-related pain and mass with about four months. The image study showed a lobulated and irregular mass, with about 12x10x9cm, infiltrating the rotator cuff and glenohumeral joint. The core needle biopsy confirmed the presence of a synovial sarcoma, staged as a T2N0M0. The treatment started with neo-adjuvant chemotherapy, with a poor response. Then, surgery was performed, with a wide excision of the scapula, proximal humerus and clavicle (type IV of Malawer) without reconstruction. The treatment regime ended with the radiotherapy. Eighteen months after the surgery the patient remains disease-free and a neo-joint is starting to form. At this time the DASH score was 63.8. Despite the flail shoulder function is acceptable. Conclusion: In such an aggressive tumour, an extensive and multidisciplinary approach is imperative but always with regard to the limb function.