Baby with cyanosis when eating that improves with crying and inability to pass an NG tube through the pharynx is highly suggestive of which condition?

• A. Choanal atresia
• B. Tracheoesophageal fistula
• C. Anencephaly
• D. Cleft palate

Answer: (A)

Newborns breathe mainly through the nose, so blockage of the posterior nasal passages causes cyanosis during feeding because airflow is reduced. When the infant cries, the mouth opens and air can reach the lungs despite the nasal obstruction, often improving the color. The fact that a nasogastric tube cannot be threaded through the nasal passage further supports a blocked choana. This combination—cyanosis during feeding that improves with crying, plus inability to pass an NG tube through the nose—is classic for choanal atresia. Other conditions don’t fit this pattern as well: tracheoesophageal fistula tends to cause choking and drooling with feeds and different testing findings; anencephaly is incompatible with life; cleft palate presents with oronasal communication but not isolated nasal obstruction with this specific response to crying.