How often do we see peritoneal carcinomas from gastric origin? Is it very common ?
It is common, at the time of initial surgery about 30% of gastric cancer patients will have peritoneal seeding.
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Approximately 10% of patients with primary colon cancer will have peritoneal carcinomatosis. Up to 30% of patients with gastric cancer and pancreas cancer have peritoneal seeding at the time of exploration for resection of the primary malignancy. A majority of patients with papillary serous ovarian cancer have peritoneal seeding. The simultaneous occurrence of one of these common cancces (sic) coincidentally with a primary peritoneal mesothelioma can occur. Interestingly, one patient in our series who was diagnosed with peritoneal carcinomatosis of colorectal origin subsequently presented 2 years later with peritoneal mesothelioma."
The complete article, by Sugarbaker et.al., is here:
http://www.surgicaloncology.de/content/public/fremd/diagtreat.htmlNote: It's an article about Peritoneal Mesothelioma, but the quotation above is a part of the discussion.
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