title: Glomangiopericytoma of the nasal cavity.
abstract: Glomangiopericytoma is a rare tumor arising from the pericytes surrounding capillaries, and accounts for less than 0.5% of all sinonasal tumors. A 60-year-old male patient presented with a glomangiopericytoma of the nasal cavity manifesting as nasal obstruction and epistaxis, which was treated successfully with endoscopic excision. Histological examination showed multiplication of spindle-shaped to oval cells which reacted strongly to immunostaining for α-smooth muscle actin. Glomangiopericytoma is categorized as a borderline low malignancy tumor, which tends to recurrence. Strict follow-up is required, especially if complete resection is not achieved.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi, Japan. kenkeneast72@gmail.com
authors.forename: Kenjiro
authors.initials: K
authors.lastname: Higashi
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Nakaya
authors.forename: Mika
authors.initials: M
authors.lastname: Watanabe
authors.forename: Ryoukichi
authors.initials: R
authors.lastname: Ikeda
authors.forename: Takahiro
authors.initials: T
authors.lastname: Suzuki
authors.forename: Takeshi
authors.initials: T
authors.lastname: Oshima
authors.forename: Toshimitsu
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis; D003937:Diagnosis, Differential; D004724:Endoscopy; D006393:Hemangiopericytoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D009296:Nasal Cavity / Q000473:pathology / Q000601:surgery; D009669:Nose Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed
chemical_list: D014408:Biomarkers, Tumor