A rare case of respiratory syncytial virus bronchiolitis with spontaneous bilateral pneumothorax in an infant

Abstract: The most common self-limiting viral infection of the lower respiratory tract in the pediatric population is bronchiolitis, which most commonly affects infants. In most cases, respiratory syncytial virus (RSV) is the causative agent. In general, the recovery occurs within 5–7 days without any complications. Spontaneous pneumothorax is one of the rare and less-reported complications of bronchiolitis. We report a case of a male child aged 5 months with bilateral spontaneous pneumothorax (PNO) with subcutaneous emphysema following bronchiolitis. The nasopharyngeal swab was positive for RSV, and all other investigations ruled out any underlying illness causing spontaneous PNO. Although it is a rare complication of bronchiolitis, it may occur late during the disease course. Pediatricians must be aware of this life-threatening complication, which may develop during the disease course despite an early clinical improvement.