title: Retropharyngeal pseudomasses.
abstract: The false impression of a retropharyngeal mass on lateral radiographs of the neck is not uncommon, particularly in the pediatric patient. With careful attention to radiographic technique, positioning of the patient, and the proper timing with regard to respiration, the diagnosis of a "pseudomass" can be avoided.
mesh_terms: D000038:Abscess / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D007819:Laryngeal Edema / Q000175:diagnosis; D008297:Male; D010608:Pharyngeal Diseases / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed; D014140:Tracheotomy