全部病例均行上中腹部CT平扫及全腹部增强扫描，观察淋巴结的大小、形态、密度、强化方式及增大淋巴结的优势分布。

All the cases had plain CT of upper and middle abdomen and enhanced CT of abdomen, and to observe the size, shape, density, enhancement and distribution of lymph nodes.

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全部病例均行上中腹部CT平扫及全腹部增强扫描，观察淋巴结的大小、形态、密度、强化方式及增大淋巴结的优势分布。

All the cases had plain CT of upper and middle abdomen and enhanced CT of abdomen, and to observe the size, shape, density, enhancement and distribution of lymph nodes.

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