目的 探讨高频超声与MRI对胆管闭锁及非胆管闭锁性黄疸的鉴别诊断价值。

Objective To observe value of MRI and high-frequency ultrasonography (HUS) in differential diagnosis of biliary atresia (BA) from non-biliary atresia (non-BA).

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结论高频超声对鉴别胆管闭锁及非胆管闭锁性黄疸有较高的准确率，可作为首选检查方法。

Conclusion HUS has high diagnostic accuracy, and can be considered as the first choice to differentiate BA from non-BA.

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镜下见，肝外胆道闭锁导致肝脏大量黄绿色胆栓、假胆管增生(见于下面的中央)、广泛纤维化。

Microscopically, extrahepatic biliary atresia leads to this appearance in the liver, with numerous brown-green bile plugs, bile duct proliferation (seen at lower center), and extensive fibrosis.

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