合并永存左上腔静脉14例。

There were 14 cases with left superior vena cava.

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目的探讨永存左上腔静脉的超声表现及临床意义。

Objective To study the ultrasonic feature of persistent left superior vena cava and its clinic value.

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图6病例15，永存左上腔静脉，双侧上腔静脉间见交通支。

Fig 6 Case 15. Persistent left superior vena cava, the communicating branch between the bilateral superior vena cava.

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图6病例15，永存左上腔静脉，双侧上腔静脉间见交通支。

Fig 6 Case 15. Persistent left superior vena cava, the communicating branch between the bilateral superior vena cava.

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