In yolk sac tumors, which marker is elevated?

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Multiple Choice

In yolk sac tumors, which marker is elevated?

Explanation:
Yolk sac tumors differentiate toward structures that produce alpha-fetoprotein (AFP), a fetal protein. Because these tumors secrete AFP, it becomes the characteristic serum marker used to diagnose and monitor them. In practice, a rising or persistently elevated AFP level points toward a yolk sac tumor and helps track treatment response or detect recurrence. By contrast, beta-hCG is more linked to trophoblastic elements and choriocarcinoma (or mixed germ cell tumors with such components), LDH is a non-specific tumor-burden marker, and PSA is unrelated to germ cell tumors. So the elevated marker in yolk sac tumors is AFP.

Yolk sac tumors differentiate toward structures that produce alpha-fetoprotein (AFP), a fetal protein. Because these tumors secrete AFP, it becomes the characteristic serum marker used to diagnose and monitor them. In practice, a rising or persistently elevated AFP level points toward a yolk sac tumor and helps track treatment response or detect recurrence. By contrast, beta-hCG is more linked to trophoblastic elements and choriocarcinoma (or mixed germ cell tumors with such components), LDH is a non-specific tumor-burden marker, and PSA is unrelated to germ cell tumors. So the elevated marker in yolk sac tumors is AFP.

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