title: [Pathogenesis of pneumosinus maxillaris dilatans].
abstract: Pneumoceles are most often found in the frontal sinus. Only four maxillary sinus pneumoceles have previously been reported: we add a fifth. By measuring antral pressures through a transoral puncture, we could demonstrate a valve between the nasal cavity and the maxillary antrum. Increased pressure after noseblowing is considered responsible for the maxillary sinus expansion.
mesh_terms: D000293:Adolescent; D004724:Endoscopy; D006801:Humans; D008297:Male; D008365:Manometry; D008443:Maxillary Sinus / Q000000981:diagnostic imaging; D010254:Paranasal Sinus Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D012852:Sinusitis / Q000150:complications*; D014057:Tomography, X-Ray Computed
vernacular_title: Zur Pathogenese des Pneumosinus maxillaris dilatans.