A child has cyanosis relieved by squatting, an ejection murmur and a boot-shaped heart on the chest film. What is the most likely diagnosis?
Answer and explanation
Correct answer: B. Tetralogy of Fallot
- Step 1: The picture of cyanosis relieved by squatting with a boot-shaped heart fits Tetralogy of Fallot.
Answer
Tetralogy of Fallot.
Why not the others: 'Transposition of the great arteries': cyanosis appears within hours and is not relieved by squatting. 'Ventricular septal defect': it gives a pansystolic murmur without cyanosis. 'Eisenmenger syndrome': it follows a long-standing left-to-right shunt with reversal.
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