cardiac notch of left lung

例句：

1. 1.The doctor found a cardiac notch in his chest during the examination.
   医生在检查时发现他的胸部有一个心脏凹陷。
2. 2.This condition is often associated with a cardiac notch on the left side of the heart.
   这种状况通常与左心室的心脏凹陷有关。
3. 3. The patient's medical history revealed a cardiac notch that required further evaluation.
   患者的医疗史显示了一个需要进一步评估的心脏凹陷。