Seminoma echt home block II pathology male-testis menu Seminoma Seminoma is the commonest germ cell neoplasm. The peak age is between 30 and 40 years of age, which is slightly later than the presentation of other germ cell neoplasms. Grossly, the seminoma presents as fleshy tan to grey-white mass, usually without hemorhage or necrosis as seen in this specimen. The ovarian counterpart of this tumor is the dysgerminoma.
Metastatic spread is first to lymph nodes, and later, hematogenous.