1. Testicular seminoma originates in the germinal epithelium of the seminiferous tubules. 2. About half of germ cell tumors of the testicles are seminomas . 3. Stage 2 seminoma is indicated by the presence of retroperitoneal metastasis. 4. Unlike classical seminoma , fibrous septation and lymphocytic infiltrates are not seen. 5. The most common type of testicular cancer occurring in undescended testes is seminoma . 6. Incidence among African Americans doubled from 1988 to 2001 with a bias towards seminoma . 7. Also, NSGCTT is considered more aggressive than Seminomas , the " other " kind of Testicular Cancer. 8. Also, NSGCTT is considered more aggressive than seminomas , the " other " kind of testicular cancer. 9. Some cases of seminoma can present as a primary tumour outside the testis, most commonly in the mediastinum. 10. Seminomas , a subtype of testicular germ cell tumors, frequently have activating mutations in exon 17 of CD117.
