title: Bronchogenic cyst of the tip of the tongue: report of two cases.
abstract: BACKGROUND
  Lingual bronchogenic cyst is a rare congenital malformation, classified as a choristoma. It is lined by respiratory epithelium. Extrathoracic sites are rare and the tongue is an exceptional site.
  
  
  METHODS
  The authors report two cases of bronchogenic cyst of the tip of the tongue in newborn infants. These two initially asymptomatic lesions gradually increased in size, leading to feeding difficulties in one case. MRI demonstrated well-demarcated, solitary, unilocular cystic images. Surgical resection was easily performed and histological examination concluded on bronchogenic cyst. An aberrant right upper lobe tracheal bronchus was also present in one case.
  
  
  CONCLUSIONS
  Lingual choristomas are rare and defined histologically according to the type of epithelium. The embryological origin of lingual bronchogenic cysts remains controversial. MRI is the imaging examination of choice to characterize these lesions, but the definitive diagnosis is based on histological examination. Early, systematic surgical enucleation of all congenital lingual cysts must be performed to prevent obstructive and infectious complications.
authors.affiliation: Service de chirurgie maxillo-faciale et stomatologie, CHU d'Angers, 4, rue Larrey, 49100 Angers, France. Electronic address: jeandanielkun@yahoo.fr.
authors.forename: J-D
authors.initials: JD
authors.lastname: Kün-Darbois
authors.affiliation: Service d'ORL et chirurgie cervico-faciale, CHU d'Angers, 4, rue Larrey, 49100 Angers, France.
authors.forename: R
authors.initials: R
authors.lastname: Breheret
authors.affiliation: Service d'ORL et chirurgie cervico-faciale, CHU d'Angers, 4, rue Larrey, 49100 Angers, France.
authors.forename: A
authors.initials: A
authors.lastname: Bizon
authors.affiliation: Service de chirurgie maxillo-faciale et plastique de la face, CHU Trousseau, route de Loche, 37044 Tours cedex, France.
authors.forename: A
authors.initials: A
authors.lastname: Paré
authors.affiliation: Service d'ORL et chirurgie cervico-faciale, CHU d'Angers, 4, rue Larrey, 49100 Angers, France.
authors.forename: L
authors.initials: L
authors.lastname: Laccourreye
mesh_terms: D001994:Bronchogenic Cyst / Q000175:diagnosis; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D014060:Tongue Diseases / Q000175:diagnosis
keywords: Bronchogenic cyst; Choristoma; Congenital malformation; Lingual cyst; Tracheal bronchus