title: Congenital midline sinus of the upper lip.
abstract: A rare case of congenital midline sinus of the upper lip is presented. The patient had recurrent cellulitis with swelling at the base of the medial crus of the right lower lateral cartilage. Excision was performed using the intraoral approach. Theories concerning the etiology of the midline sinus of the upper lip are discussed.
authors.affiliation: Division of Plastic Surgery, King Saud University, Riyadh, Saudi Arabia.
authors.forename: M M
authors.initials: MM
authors.lastname: Al-Qattan
mesh_terms: D002481:Cellulitis / Q000209:etiology; D002648:Child; D005260:Female; D006801:Humans; D008047:Lip Diseases / Q000150:complications / Q000151:congenital* / Q000601:surgery*; D016155:Oral Fistula / Q000150:complications / Q000151:congenital* / Q000601:surgery*