Patient Data
Age: Neonate
Gender: Male
From the case:
Transposition of the great arteries
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Info
![](https://prod-images-static.radiopaedia.org/images/11932881/downloaded_image20240429-978-mlggqd_big_gallery.jpeg)
Globular heart shadow, giving egg on a string appearance.
Case Discussion
Egg on a string sign refers to the cardiomediastinal silhouette seen in transposition of the great arteries (TGA). The heart appears globular due to an abnormal convexity of the right atrial border and left atrial enlargement and therefore appears like an egg.