Gallbladder polyp pathophysiology: Difference between revisions
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Revision as of 14:39, 26 November 2012
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Gallbladder Polyp Microchapters |
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Diagnosis |
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Gallbladder polyp pathophysiology On the Web |
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Risk calculators and risk factors for Gallbladder polyp pathophysiology |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Pathomorphology
Morphology and size have long been deemed important features of gallbladder polyps.
A “ten millimeter rule” for gallbladder polyps is often cited as a reason for cholecystectomy because polyps larger than 10 mm have an increased risk of cancer. Several caveats should be kept in mind when considering the size and morphology of gallbladder polyps.
- Polyps less than 5 mm rarely, if ever, harbor carcinoma.
- Polyps greater than 15 mm may have cancer cells in up to 70% of specimens.
- Polyps that are 5-15 mm must be carefully followed; with a risk of malignancy up to 22% in these patients. Finally, sessile polyps are more likely malignant than pedunculated polyps.