Synovial sarcoma.A review of 58 cases

Abstract

Fifty-eight cases of synovial sarcoma were studied from the morbid anatomical point of view. The literature was reviewed and some clinical aspects were described. The essential biphasic histological pattern of these tumors is emphasized and they are divided into 3 histological groups. Group A includes tumors in which the spindle cell elements and the pseudoepithelial ones are clearly seen throughout the tumor. In Group B the spindle cell (fibrosarcomatous) elements predominate. Group C tumors show mainly a pseudoepithelial structure. The overall 5-year survival rate was 51% and no correlation was found between the histological picture and prognosis.