Tumor markers and pathology of testicular tumors.

The WHO International Classification of Testes Tumors has been briefly discussed. The classification divides the tumors into those of a single cell type and those of more than 1 cell type. Seven basic histological categories are recognized: seminoma, spermatocytic seminoma, embryonal carcinoma, yolk sac tumor, polyembryoma and teratoma. The classification correlates well with tumor markers and with clinical behavior.