9063/3 Spermatocytic seminoma
|Testis/Male genital organs|
|ICD-O-3 topography code:||C62-C63|
A rare variant of seminoma characterized by the presence of three cell types: round cells with eosinophilic cytoplasm, small cells with dark nucleus and a small amount of cytoplasm, and mono-or multinucleated giant cells. The neoplastic cells are not cohesive. There is an edematous stroma present; lymphocytic infiltrates are rarely seen. Most patients are older males.