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WHO Classification of Tumours
Spermatocytic seminoma
Testis/Male genital organs


Definition

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.