title: C-1 root schwannoma with aggressive lateral mass invasion.
abstract: Schwannomas are relatively common, benign tumors that are thought to arise from the nerve sheath cell. Schwannomas of the C1 root are extremely rare and seldom invade lateral masses because they gradually increase in size and can extend through the wide space behind the lateral mass instead of the intervertebral foramen. We present here an unusual case of a benign schwannoma that aggressively invaded the lateral mass of C-1.
authors.affiliation: Department of Neurosurgery, Medical College, Korea University, 80 Guro- dong, Seoul 152-050, Korea.
authors.forename: Joo Han
authors.initials: JH
authors.lastname: Kim
authors.forename: Ju Han
authors.initials: JH
authors.lastname: Lee
authors.forename: Youn Kwan
authors.initials: YK
authors.lastname: Park
authors.forename: Taek Hyun
authors.initials: TH
authors.lastname: Kwon
authors.forename: Hung Seob
authors.initials: HS
authors.lastname: Chung
mesh_terms: D005260:Female; D006801:Humans; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009442:Neurilemmoma / Q000473:pathology*; D013125:Spinal Neoplasms / Q000473:pathology*; D013126:Spinal Nerve Roots / Q000473:pathology*