The majority of testicular cancers, specifically 60% of them, are non-seminoma tumors. These tumors are characterized by rapid development, although it should be noted that there are different types.
Each type of non-seminoma tumor is associated with a tumor marker. For example, embryonal carcinoma is the most frequent type of tumor and is detected by an increase in hCG and AFP.
In contrast, teratoma is a type of tumor that arises in the cells of the embryonic layers. This type of cancer does not produce any characteristic tumor markers, as it does not cause increased levels of hCG and AFP.