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.

youdao