Question
Most common germ cell tumor of ovary is ‑
| A. |
Dysgerminoma
|
| B. |
Serous cystadenoma
|
| C. |
Yolk sac tumor
|
| D. |
Dermoid cyst
|
Show Answer
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Correct Answer » D
Explanation
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Clinical Reasoning for the Correct Answer
– Dermoid cysts are mature cystic teratomas, the most common germ cell tumors of the ovary, accounting for about 20% of all ovarian tumors.
– They typically occur in women of reproductive age and contain tissues derived from all three germ layers (ectoderm, mesoderm, endoderm).
– Dysgerminomas are the most common malignant germ cell tumors but far less common than dermoid cysts overall.
– Yolk sac tumors are malignant, rare, and mostly seen in younger females; they represent a smaller proportion of ovarian germ cell tumors.
– Serous cystadenomas are epithelial tumors, not germ cell tumors, and therefore irrelevant here.
