title: Unusual spread of sinonasal carcinoma via the eustachian tube into the middle and external ear.
authors.forename: M
authors.initials: M
authors.lastname: Castillo
authors.forename: Y Y
authors.initials: YY
authors.lastname: Lee
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D004428:Ear Neoplasms / Q000473:pathology*; D004431:Ear, External / Q000473:pathology; D004432:Ear, Middle / Q000473:pathology; D005064:Eustachian Tube / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity / Q000473:pathology; D009305:Nasopharynx / Q000473:pathology; D009669:Nose Neoplasms / Q000473:pathology*