title: Quiz of the month: foreign body perforation of the cervical esophagus caused by a walnut.
authors.affiliation: Department of Diagnostic Radiology, Justus-Liebig University Giessen, Klinikstrasse 36, D-35385 Giessen, Germany.
authors.forename: H D
authors.initials: HD
authors.lastname: Litzlbauer
authors.forename: B
authors.initials: B
authors.lastname: Weimar
authors.forename: W
authors.initials: W
authors.lastname: Padberg
authors.forename: K
authors.initials: K
authors.lastname: Rauber
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000209:etiology; D004939:Esophageal Perforation / Q000000981:diagnostic imaging* / Q000209:etiology; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D009754:Nuts; D014057:Tomography, X-Ray Computed