RESUMEN
Objective:To explore the diagnosis and treatment process of integrated multiple disciplines on primary bidirectional synovi-al sarcoma in breasts. Methods:A patient with breast sarcoma was diagnosed and treated with body satisfaction scale (BSS) on May 2017 in the Department of Breast Surgery of Guizhou Provincial People's Hospital. Procedures were fully discussed. The patient was prepared for the surgery and was successfully treated by palliative resection (in the right breast tumor) and partial pectoralis major muscle resection and reconstruction (in the chest wall flap). Results:Patient's condition and quality of life significantly improved. Ex-tended treatment was provided for continuous survival. Conclusion:Prognosis of primary bidirectional synovial sarcoma of the breasts can be improved by early diagnosis and treatment. Patient's willingness of medical consultation could affect the ontcome.