Academy of Medical Sciences of I.R. Iran Archives of Iranian Medicine 1029-2977 17 10 2014 10 01 Primary Renal Synovial Sarcoma: A Rare Tumor with an Atypical Presentation 0 0 EN Ankita Majumder Soumit Dey Binny Khandakar Sripurna Medda Prabir Chandra Paul Journal Article Primary renal synovial sarcoma (PRSS) is a very rare tumor, first described by Argani, et al. The exact incidence of PRSS is not yet known. Here we present a case of PRSS diagnosed by histopathology, supplemented with immunohistochemistry.