A rare case of tuberculous abscess causing airway obstruction in a paediatric patient in South-East Asia

A 6-year old girl, presented with symptoms of obstructive sleep apnoea. She was referred to our centre when she developed obstructive symptoms such as stridor and dysphagia a month later. She was found to have a right neck swelling with a posterior pharyngeal wall mass, which caused upper airway obstruction. A computerized-tomography scan of her neck showed a very narrowed upper airway with a retropharyngeal abscess without prevertebral or vertebral involvement. She had a challenging intubation and underwent an emergency intraoral incision and drainage. Pus that was drained revealed acid fast bacilli and histopathological examination showed necrotizing granulomatous inflammation, in favour of a tuberculous abscess. Post operatively, her symptoms resolved and her intraoral wound healed. She completed anti-tuberculous treatment and has remained well at 6 months follow up. Our case illustrates how a cold retropharyngeal abscess can masquerade as obstructive sleep apnoea, with a compromised airway as it increases in size.