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OBG · Gynaecological oncology: pseudomyxoma peritonei
Sample itemA woman has gelatinous mucinous ascites and peritoneal deposits with a mucinous ovarian mass. Which organ should be examined as a possible primary source?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Appendix
Pseudomyxoma peritonei is most often caused by a low-grade mucinous tumour of the appendix, with secondary ovarian involvement. Careful appendiceal evaluation changes the surgery and prognosis.
Option by option
A. Spleen
The spleen is not a source of mucinous tumours.
B. Appendix (correct)
Correct. A mucinous appendiceal tumour is the usual source.
C. Gallbladder
Gallbladder tumours do not typically cause gelatinous peritoneal disease.
D. Pancreatic tail
Pancreatic mucinous tumours are rarer causes.
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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