title: Melanotic oncocytic metaplasia of the nasopharynx.
abstract: Two cases of melanotic oncocytic metaplasia occurring in the nasopharynx are reported. One presented with serous otitis media and the other with tinnitus. Nasoscopic examination revealed a small brown nodule obstructing the Eustachian tube in both cases. While oncocytic metaplasia of the nasopharynx is not too uncommon, melanin pigmentation of the nasal or nasopharyngeal mucosa is very rare. To our knowledge, their combination has not been described.
authors.affiliation: Department of Pathology, University of Hong Kong, Queen Mary Hospital.
authors.forename: T W
authors.initials: TW
authors.lastname: Shek
authors.forename: I S
authors.initials: IS
authors.lastname: Luk
authors.forename: J M
authors.initials: JM
authors.lastname: Nicholls
authors.forename: K O
authors.initials: KO
authors.lastname: Fok
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D008543:Melanins / Q000032:analysis*; D008679:Metaplasia / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D009305:Nasopharynx / Q000737:chemistry / Q000473:pathology*; D011230:Precancerous Conditions
chemical_list: D008543:Melanins