Rhabdomyosarcomatous differentiation in a spermatocytic seminoma with review of literature.

The sarcomatous differentiation occurring in spermatocytic seminoma (SS) renders an aggressive behavior with metastatic potential to this relatively indolent neoplasm. Correct identification of this sarcomatous component is essential as further management differs. Herein, we report a case of young male with SS with rapid increase in size of the tumor. Histopathology revealed a rhabdomyosarcomatous component infiltrating the rete-testis and epididymis along with a well-circumscribed SS.