In case 6, the heart looks "inverted" compared to normal (Figure 8). This phenomenon is called dextrocardia, and it results from a looping anomaly during embryologic development.

病例6中的心脏与正常相比看上去就像“反转”了一样（图8），这称作右位心，是由于胚胎发育过程中的心脏成环异常导致。