A case of acquired laryngomalacia in an infant, with endoscopy before and after establishing the diagnosis for the first time.

A 12-week-old infant girl born at 27 weeks gestation, with multiple comorbidities, was referred to the paediatric otolaryngology team due to stridor and feeding difficulties. Initial airway endoscopy was performed, showing no abnormal findings. The infant underwent frequent hospitalisations for recurrent cyanotic spells. Despite initial laryngoscopy and bronchoscopy not showing abnormalities, a repeat endoscopy demonstrated laryngomalacia, significant enough to require a supraglottoplasty. This is the first report to confirm, with video evidence, that some cases of laryngomalacia are acquired rather than congenital, even in infancy.