Intratubular Germ Cell Neoplasia : Pagetoid Spread to Rete Testis
Rete testis showing pagetoid spread of intratubular germ cell neoplasia (IGCN) from nearby tubules. The invasive component in this case was a seminoma. Areas in the upper left are uninvolved and filled with proteinaceous fluid. The tubules in the lower right show pagetoid involvement by tumor cells.