Question

A chest X-ray, with a gas-filled stomach visible. A newborn presents shortly after birth with excessive drooling, choking, and cyanosis on attempting feeds. What is the most likely diagnosis?

• A. Pure esophageal atresia (Type A)
• B. Tracheoesophageal fistula without atresia (Type E, H-type)
• C. Esophageal atresia with distal tracheoesophageal fistula (Type C)
• D. Congenital diaphragmatic hernia

Hint:

Gas-filled stomach = Distal TEF is present (Type C, the most common).
Gasless abdomen = Pure Esophageal Atresia (Type A, no fistula).
Always pass a firm orogastric tube and take an X-ray to confirm the blind pouch.

Answer 1

The Correct Option is C

Concept:
The clinical presentation of drooling, choking, and cyanosis with feeding in a newborn strongly suggests a disruption in esophageal continuity.
The radiologic clue of a "gas-filled stomach" is the key discriminator required to pinpoint the exact anatomical subtype of the defect.
Explanation:
• Excessive drooling and immediate choking on the first feed occurs because the proximal esophagus ends in a blind pouch (Esophageal Atresia); swallowed saliva and milk have nowhere to go and spill over into the trachea, causing cyanosis.

• To classify the defect, we look at the abdominal X-ray.

• If there is a "gas-filled stomach," air must be entering the gastrointestinal tract from the respiratory tract.

• This proves the existence of a fistulous connection between the trachea and the distal esophagus (a distal Tracheoesophageal Fistula, or TEF).

• The combination of a blind proximal esophageal pouch and a distal TEF is anatomically classified as Type C Esophageal Atresia.

• Type C is by far the most common variant, accounting for approximately 85% of all cases.

• In Pure Esophageal Atresia (Type A), there is no fistula connecting the airway to the bowel, so no air can reach the stomach; the X-ray would show a completely gasless abdomen.

• An H-type TEF (Type E) lacks atresia (the esophagus is intact), so patients don't typically present with immediate complete obstruction and massive drooling, but rather with recurrent pneumonias.
Final Answer:
The combination of clinical esophageal obstruction and radiological gas in the stomach confirms Esophageal atresia with a distal tracheoesophageal fistula (Type C).