title: Recurrent left cervical abscess secondary to persistent pyriform sinus fistula.
abstract: Congenital pyriform sinus fistula is a rare defect arising from the failure of obliteration of the third or fourth pharyngeal pouch remnant. It is a recognized potential cause of acute suppurative thyroiditis.
authors.affiliation: Department of Paediatric Surgery, Great Ormond Street Hospital for Sick Children, London, UK.
authors.forename: M K
authors.initials: MK
authors.lastname: Hsin
authors.forename: G J
authors.initials: GJ
authors.lastname: Barker
authors.forename: L
authors.initials: L
authors.lastname: Spitz
mesh_terms: D000038:Abscess / Q000209:etiology*; D000208:Acute Disease; D002648:Child; D006801:Humans; D007013:Hypopharynx / Q000002:abnormalities*; D008297:Male; D010608:Pharyngeal Diseases / Q000150:complications* / Q000151:congenital*; D012008:Recurrence; D016156:Respiratory Tract Fistula / Q000150:complications* / Q000151:congenital*; D013290:Streptococcal Infections / Q000209:etiology*; D013966:Thyroiditis / Q000209:etiology*