What is the most common type of testicular cancer?

Seminoma is indeed the most common type of testicular cancer, accounting for approximately 50% of all testicular germ cell tumors. It is typically seen in men between the ages of 25 and 45. Seminomas are generally slow-growing and have a good prognosis, especially when detected early. They are characterized by their sensitivity to radiation therapy, which is an important factor in treatment decisions.

Understanding the characteristics of seminomas helps in their differentiation from other types of testicular cancers, such as embryonal carcinoma, choriocarcinoma, and teratomas, which tend to occur less frequently and may have different age distributions, growth rates, and treatment responses. This prevalence and the specific behavior of seminomas make them a critical consideration in the evaluation of testicular masses.