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What is Steeple sign is seen in - and explain in detail?
Ans. is 'b' i.e., Laryngotracheobronchitis (croup) Croupo Me cause of acute upper airway obstruction,o Mild upper RTI for 1-3 days followed by upper airway obstruction,o Barking cough, hoarsness, Inspiratory stridor,o X-ray shows subglottic narrowing or steeple sign.Acute epiglottitiso Acute potential fatal condition,o Redpiratry progressine respiratory obstruction,o Cherry red swollen epiglottis,o X-ray show's thumb sign.The steeple sign as seen on an anteroposterior neck X-ray of a child with croupNeck X-ray showing thumb sign.