title: Retroauricular abscess from first bilateral branchial cleft sinus.
authors.affiliation: Department of Otolaryngology, Luxembourg Hospital Center, Luxembourg, Luxembourg.
authors.forename: Pedro Costa
authors.initials: PC
authors.lastname: de Araujo
authors.forename: Julien Wen
authors.initials: JW
authors.lastname: Hsieh
authors.forename: Sébastien
authors.initials: S
authors.lastname: Kuntzler
authors.forename: Elena
authors.initials: E
authors.lastname: Koonen
mesh_terms: D000038:Abscess / Q000175:diagnosis* / Q000601:surgery; D000328:Adult; D001934:Branchial Region / Q000473:pathology*; D004423:Ear; D005402:Fistula / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008297:Male