A child with acute respiratory distress shows hyperinflation of unilateral lung in chest X-ray. Most likely cause for above presentation is:: (A) Staphylococcal bronchopneumonia, (B) Aspiration pneumonia, (C) Congenital lobar emphysema, (D) Foreign body aspiration
Answer is D. Foreign body aspiration is the commonest cause of acute lung collapse in a child. Ref: Chest Radiology: The Essentials By Jannette Collins, Eric J. Stern, 2007, Page 196