CAJ | 학술논문

AIM: To assess the ability of endoscopic ultrasonography (EUS) to differentiate neoplastic from nonneoplastic polypoid lesions of the gallbladder (PLGs). METHODS: The uses of EUS and transabdominal ultrasonography (US) were retrospectively analyzed in 94 surgical cases of gallbladder polyps less than 20 mm in diameter. RESULTS: The prevalence of neoplastic lesions with a diameter of 510 mm was 17.2% (10/58); 1115mm,15.4% (4/26), and 1620mm, 50% (5/10). The overall diagnostic accuracies of EUS and US for small PLGs were 80.9% and 63.9% ( P < 0.05), respectively. EUS correctly distinguished 12 (63.2%) of 19 neoplastic PLGs but was less accurate for polypsless than 1.0 cm (4/10, 40%) than for polyps greater than 1.0 cm (8/9, 88.9%) ( P = 0.02).CONCLUSION: Although EUS was more accurate than US, its accuracy for differentiating neoplastic from Nonneoplastic PLGs less than 1.0 cm was low. Thus, EUS alone is not sufficient for determining a treatment strategy for PLGs of less than 1.0 cm.