title: The vanishing neck mass: how using a laryngeal mask airway during magnetic resonance imaging of a child can cause misdiagnosis.
authors.affiliation: Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. simpaoa@email.chop.edu.|Department of Anesthesiology and Critical Care Medicine, Division of General Anesthesia, The Children's Hospital of Philadelphia, Philadelphia, PA, USA. simpaoa@email.chop.edu.
authors.forename: Allan F
authors.initials: AF
authors.lastname: Simpao
authors.affiliation: Department of Radiology, Perelman School of Medicine at the University of Pennsylvania and The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
authors.forename: Avrum N
authors.initials: AN
authors.lastname: Pollock
authors.affiliation: Department of Anesthesiology and Critical Care Medicine, Division of General Anesthesia, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
authors.forename: Stephanie E
authors.initials: SE
authors.lastname: McGinnis
authors.affiliation: Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.|Department of Anesthesiology and Critical Care Medicine, Division of General Anesthesia, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
authors.forename: Jorge A
authors.initials: JA
authors.lastname: Gálvez
mesh_terms: D000768:Anesthesia, General; D016477:Artifacts; D002648:Child; D003937:Diagnosis, Differential; D003951:Diagnostic Errors / Q000517:prevention & control*; D005260:Female; D006258:Head and Neck Neoplasms; D006801:Humans; D017214:Laryngeal Masks; D008279:Magnetic Resonance Imaging