PAEA Surgery End Of Rotation (EOR) Practice Exam

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Which type of malignant germ cell tumors represents 35% of cases?

Nonseminomatous
Seminomatous
Teratomas
Choriocarcinomas

The correct answer is: Seminomatous

Seminomatous tumors are a specific subtype of testicular germ cell tumors, which account for a significant proportion of these malignancies. About 35% of germ cell tumor cases are represented by seminomas, making them one of the most common types of testicular cancer. Seminomas typically arise in younger males, especially between the ages of 25 and 45. They are known for their characteristics such as a slower growth rate and better overall prognosis compared to their nonseminomatous counterparts. In addition, they are more sensitive to radiation therapy, which plays a crucial role in their treatment and management. Understanding the distribution of these tumors is essential for diagnosis and treatment planning. While nonseminomatous tumors make up a larger proportion of germ cell tumors collectively, seminomatous tumors hold their significant prevalence, making it critical for healthcare providers to recognize them when assessing testicular tumors. This prevalence reflects considerations in both clinical practice and educational contexts, where the understanding of germ cell tumors, their classifications, and statistics is an essential component of surgical oncology and urology.