title: [Structure and classification of acquired cholesteatoma].
mesh_terms: D000367:Age Factors; D002781:Cholesteatoma / Q000145:classification / Q000209:etiology; D002784:Cholesterol; D004428:Ear Neoplasms / Q000145:classification / Q000209:etiology; D004848:Epithelium; D006801:Humans
chemical_list: D002784:Cholesterol
vernacular_title: Budowa i podział nabytego perlaka.