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General Surgery · Gastrointestinal surgery: Krukenberg tumour
Sample itemA 38-year-old woman has abdominal distension. Imaging shows bilateral solid ovarian masses that preserve the ovarian shape. Histology shows mucin-filled signet-ring cells in a cellular stroma. Where is the most likely primary tumour?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Stomach
Bilateral ovarian metastases containing signet-ring cells are a Krukenberg tumour. The stomach is the commonest primary, followed by colon, appendix and breast. Spread is by transcoelomic or lymphatic routes, and the finding indicates advanced disease.
Option by option
A. Uterine endometrium
Endometrial cancer usually spreads to the ovary directly or as a synchronous primary, with endometrioid histology and not signet-ring cells.
B. Uterine cervix
Cervical cancer is usually squamous and seldom metastasises to the ovaries.
C. Urinary bladder
Bladder cancer rarely metastasises to the ovaries and is usually urothelial in type.
D. Stomach (correct)
Correct. Gastric signet-ring adenocarcinoma is the commonest source of Krukenberg tumours.
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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