Case of the Month: October, 2012

Submitted by Lien Doan, MD and Thomas J. Learch, MD .

History: 1-day-old male presents with an abnormality on chest X-ray.

( Click here for larger image. )

Question: What is the abnormality?

1. Pneumothorax
2. Mediastinal mass
3. Congestive heart failure
4. None of the above