Question: The ENT service is consulted for a neonate with hypersalivation, increased oxygen requirements, and cyanosis with feeding. Examination reveals a distended abdomen and a heart murmur. While planning an operative microlaryngoscopy, bronchoscopy, and esophagoscopy, you review a chest X-ray that shows multiple fused vertebrae. What is the diagnosis? [Answer will be posted with next week's new question]

Answer to last week's question, It's Gonna Blow (February 8, 2016):

Urgent angiography, potentially with embolization of branches of the external carotid system. This situation may represent a sentinel bleed from an impending carotid blowout.