title: The metaplastic and congenital origin of cholesteatoma.
mesh_terms: D002781:Cholesteatoma / Q000151:congenital / Q000378:metabolism / Q000473:pathology*; D004428:Ear Neoplasms / Q000151:congenital / Q000378:metabolism / Q000473:pathology*; D004432:Ear, Middle; D004848:Epithelium / Q000378:metabolism / Q000473:pathology; D006651:Histocytochemistry; D006801:Humans; D007633:Keratins / Q000378:metabolism; D008679:Metaplasia
chemical_list: D007633:Keratins