Mechanical obstruction may require operation for repair of common bile duct stricture or for gallstones.

机械性梗阻可能需要手术以修复胆总管狭窄或除去胆石。

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At times, a visible or palpable gallbladder, which may be somewhat tender, can be detected below the liver margin in patients with cystic or common bile duct obstruction.

有时候，一个能够看到或者触及的胆囊，可能较柔软，可在胆囊和胆总管梗阻的患者的肝脏边缘下探及。

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Conclusion ct can accurately define the level of lower segment of common bile duct obstruction with high diagnostic accordance rate.

结论：CT对胆总管下段梗阻定位准确，定性率较高。

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The most common cause of pancreatitis is gallstone obstruction of the duct leading from the pancreas to the small bowel, causing the fluids to back up into the pancreas.

CNN: What could be causing my pancreatitis?