A 55-year-old woman undergoes surgery for an ovarian mass. Histology shows nests of transitional epithelium resembling bladder mucosa within a dense fibrous stroma. Which ovarian tumor is this?
- A Brenner tumor ✓
- B Clear cell carcinoma
- C Endometrioid carcinoma
- D Mucinous cystadenoma
Correct answer: A. Brenner tumor
Explanation
Brenner tumor is a transitional cell tumor of the ovary. Histologically, it shows nests of transitional epithelium resembling bladder mucosa within a dense fibrous stroma. It is most commonly benign. Endometrioid carcinoma resembles endometrial glands, clear cell carcinoma shows hobnail cells and clear cytoplasm, and mucinous cystadenoma shows mucin-secreting epithelium.
Reference: Robbins and Cotran Pathologic Basis of Disease, 10th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.