What is the most common histological type of endometrial carcinoma?

• A Malignant mixed Mullerian tumour
• B Uterine serous carcinoma
• C Clear cell carcinoma
• D Endometrioid adenocarcinoma ✓

Explanation

Endometrioid adenocarcinoma accounts for roughly 80 percent of endometrial carcinomas and belongs to Type I, estrogen driven disease. Uterine serous carcinoma is the most common of the aggressive Type II tumours but constitutes only about 10 percent of cases. Clear cell carcinoma and carcinosarcoma are rarer still. The exam point is that endometrioid remains the dominant histotype despite the emphasis molecular classification places on rare subtypes.

Reference: Berek and Novak's Gynecology, 16th ed.

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Written and medically reviewed by the StethoPrep medical team.