Conclusions the thickening lesser omental bursa and abnormal echo indicate the abnormal of pancreas (86.20%) and peritoneal lesion.

结论正常小网膜囊不显示，当小网膜囊增厚和出现异常回声时提示胰腺(86 . 2 0 %)和腹腔异常。

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Objective: to give an exact description of the attachments of the lesser omentum and to point out the superior recess of omental bursa should belongs to what partition of the peritoneal cavity.

目的：为确切描述小网膜的附着以及网膜囊上隐窝的腹膜腔归属，为影像诊断和外科引流提供确切的解剖学依据。

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Results: the perimeter of omental bursa, especially, the relation of superior recess of lesser sac to caudate lobe of liver was indicated.

结果：探明了网膜囊上隐窝的周界，尤其是网膜囊上隐窝和肝尾状叶的关系。

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