Which of the following ovarian tumors is most commonly bilateral?
- A Mucinous cystadenoma
- B Serous cystadenoma ✓
- C Mature cystic teratoma
- D Fibroma
Correct answer: B. Serous cystadenoma
Explanation
Serous tumors of the ovary have the highest rate of bilaterality among benign epithelial ovarian tumors, with serous cystadenomas being bilateral in approximately 15-20% of cases. Mucinous cystadenomas are bilateral in only about 2-5%. Mature cystic teratomas are bilateral in about 10-15% but serous tumors are more commonly bilateral overall.
Reference: Berek and Hacker's Gynecologic Oncology, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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