摘要
AIM： To assess the ability of endoscopic ultrasonography （EUS） to differentiate neoplastic from non- neoplastic 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 5-20 mm was 27.2% （10/58）; 22-15 mm, 25.4% （4/26）, and 16-20 mm, 50% （5/20）. 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 polyps less 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 non-neoplastic 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.
AIM:To assess the ability of endoscopic ultrasonography(EUS) to differentiate neoplastic from non-neoplastic 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 5-10 mm was 17.2%(10/58) ;11-15 mm,15.4%(4/26) ,and 16-20 mm,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 polyps less 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 non-neoplastic PLGs less than 1.0 cm was low.Thus,EUS alone is not suffi cient for determining a treatment strategy for PLGs of less than 1.0 cm.
