title: Sinonasal Leiomyoma With Estrogen Receptor Expression.
abstract: Leiomyoma is an extremely rare tumor in sinonasal area. The reason for this is due to minimal amount of the smooth muscle in the area. The origin of this tumor is not clear and its etiology has not been proven in the literature. A 58-year-old woman who experienced nasal obstruction and epiphora visited our clinic. A huge mass was noted in right nasal cavity originating from the lacrimal bone area. The authors conducted endoscopic sinus surgery and obtained the specimen. Immunochemistry showed leiomyoma in the nasal cavity, which expressed estrogen receptor. There was no progesterone receptor expressed. The authors describe a sinonasal leiomyoma with estrogen receptors, not ever reported in previous article.
authors.affiliation: *Department of Otolaryngology-Head and Neck Surgery †Department of Plastic and Reconstructive Surgery, Chonbuk National University ‡Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Republic of Korea.
authors.forename: Jong Seung
authors.initials: JS
authors.lastname: Kim
authors.forename: Jin Yong
authors.initials: JY
authors.lastname: Shin
authors.forename: Sam Hyun
authors.initials: SH
authors.lastname: Kwon
mesh_terms: D004724:Endoscopy / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007766:Lacrimal Apparatus Diseases / Q000175:diagnosis; D007889:Leiomyoma / Q000737:chemistry / Q000175:diagnosis*; D008875:Middle Aged; D009296:Nasal Cavity / Q000473:pathology; D015508:Nasal Obstruction / Q000175:diagnosis; D009669:Nose Neoplasms / Q000737:chemistry / Q000175:diagnosis*; D010255:Paranasal Sinus Neoplasms / Q000737:chemistry / Q000175:diagnosis*; D011960:Receptors, Estrogen / Q000032:analysis*
chemical_list: D011960:Receptors, Estrogen