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OBG · Gynaecological oncology: mucinous ovarian tumour
Sample itemA 40-year-old woman has bilateral mucinous ovarian masses, each about 8 cm, with raised CEA and CA 19-9 and a normal CA-125. What is the most appropriate evaluation?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Look for a gastrointestinal primary including the appendix and colon before attributing to a primary ovarian tumour
Primary mucinous ovarian carcinomas are usually unilateral and large, while bilateral, smaller mucinous tumours are often metastatic from the gastrointestinal tract, such as the appendix, colon or stomach. Raised CEA and CA 19-9 supports this, and pseudomyxoma peritonei may follow a ruptured appendiceal tumour. Endoscopy and imaging are required.
Option by option
A. Assume bilateral primary ovarian mucinous cancer
Primary mucinous tumours are usually unilateral.
B. Measure AFP
AFP is a germ cell marker and not helpful here.
C. Start hormone therapy
Hormone therapy has no role.
D. Look for a gastrointestinal primary including the appendix and colon before attributing to a primary ovarian tumour (correct)
Correct. Bilateral mucinous tumours with raised CEA suggest a gastrointestinal primary.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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