title: [Maxillary sinus hypoplasia].
abstract: Maxillary sinus hypoplasia is rare, with an estimated prevalence of 1-5%. Out of the CT scans performed in sinusal patients between March 1998 and June 1999, we report on 4 isolated maxillary sinus hypoplasia, 4 maxillary sinus hypoplasia associated to concha bullosa, and 10 isolated conchae bullosas. All cases were evaluated by nasosinusal endoscopy and CT scan. Size, location and uni/bilateral presentation of concha bullosa is correlated to maxillary sinus hypoplasia presence, specially with regards to uncinate process presence, medial or lateral retraction. The pathogenesis of maxillary sinus hypoplasia is reviewed, and its relation to concha bullosa, evaluating how this could explain some cases of the so called chronic maxillary sinus atelectasia, as an acquired and progressive variant of maxillary sinus hypoplasia in adults.
authors: Unidad de Otorrinolaringología, Fundación Hospital Alcorcón, Madrid.
authors: G
authors: G
authors: Plaza
authors: J
authors: J
authors: Ferrando
authors: J
authors: J
authors: Martel
authors: A
authors: A
authors: Toledano
authors: G
authors: G
authors: de los Santos
mesh_terms: D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000002:abnormalities* / Q000000981:diagnostic imaging; D015523:Maxillary Sinusitis / Q000175:diagnosis / Q000209:etiology; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed