Dextro-transposition of the great arteries chest X ray

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [2]; Cafer Zorkun, M.D., Ph.D. [3]; Keri Shafer, M.D. [4]; Assistant Editor(s)-In-Chief: Kristin Feeney, B.S. [5]

Chest Xray may show the classical egg-on-side pattern

• Generally, the superior mediastinum may be narrow due to the anterior-posterior relationship of the great vessels.
• Initially, cardiac size is normal, but soon enlarges with the cardiac apex shifted to the left and inferiorly, producing the typically ovale-shaped or egg-on-side pattern.
• If a VSD is present, there will be an increase of the pulmonar vascular margins.

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