An unusual case of recurrent stridor in a child.

A two-year-old child presented with history recurrent attacks of stridor. Initially he was thought to have laryngomalasia and treated accordingly but the symptoms did not improve with age. The child was symptomatic only during episodes of respiratory tract infection. There was no feeding difficulty, growth was normal. CT thorax showed moderate compression of trachea just above the carina. CT angiography showed an incomplete double aortic arch. As the child was symptomatic only during intercurrent infections and there was no feeding difficulty, respiratory distress and growth problems conservative management was opted. Parents were advised to observe the patient and review after six months.