Which finding on ultrasonography of a gallbladder polyp is the accepted indication for cholecystectomy?
- A Polyp size greater than 10 mm ✓
- B Single pedunculated morphology
- C Coexisting cholesterolosis
- D Polyp size less than 5 mm with three polyps present
Correct answer: A. Polyp size greater than 10 mm
Explanation
Gallbladder polyps greater than 10 mm carry a significant risk of malignancy and are an accepted indication for cholecystectomy, as are polyps that show rapid growth or occur in patients above 50 to 60 years with risk factors such as primary sclerosing cholangitis or Indian ethnicity. Polyps under 6 mm without risk factors can be safely followed. Pedunculated morphology actually favours a benign cholesterol polyp, and multiple small polyps are typically cholesterol deposits rather than neoplasms.
Reference: Sabiston Textbook of Surgery, 21st ed.
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