title: Cholesteatomas of the middle ear. Diagnosis, etiology, and complications.
abstract: Cholesteatomas of the middle ear may be either congenital or acquired. Acquired lesions arise from either the pars flaccida or the pars tensa of the tympanic membrane. Etiology, modes of extension, and consequent complications are described.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001847:Bone Diseases / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D002781:Cholesteatoma / Q000150:complications / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D003937:Diagnosis, Differential; D004427:Ear Diseases / Q000150:complications / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D004428:Ear Neoplasms / Q000000981:diagnostic imaging; D004432:Ear, Middle / Q000000981:diagnostic imaging*; D005260:Female; D006099:Granuloma / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D010235:Paraganglioma / Q000000981:diagnostic imaging; D011300:Preoperative Care; D014057:Tomography, X-Ray Computed