title: Intradural chondroma in the cervical spine: case report.
abstract: Chondromas are benign tumors that are rarely located in the spine. The authors present a rare occurrence of a spinal chondroma that developed as an intradural but extramedullary tumor in a 60-year-old woman. The location of the tumor at C4-5 was confirmed by MRI, with hyperintensity on T2-weighted images and isointensity on T1-weighted images. The tumor was completely contained intradurally, with no continuity to any vertebrae. It adhered to the anterior dura, indicative of its likely origin from the dura mater. The tumor was completely resected, with no sign of recurrence after 3 years postoperatively. Although reports of chondromas originating from the dura mater have been previously described, these have all been intracranial tumors. To the best of the authors' knowledge, this is the first report of an intradural chondroma located in the spine. Therefore, chondromas should be considered in the differential diagnosis of intradural spinal tumors.
authors.affiliation: Department of Orthopaedic Surgery and Spine Center, Shiraniwa Hospital, Ikoma, Nara; and.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Hori
authors.affiliation: Department of Orthopaedic Surgery and Spine Center, Shiraniwa Hospital, Ikoma, Nara; and.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Seki
authors.affiliation: Department of Orthopaedic Surgery and Spine Center, Shiraniwa Hospital, Ikoma, Nara; and.
authors.forename: Tadao
authors.initials: T
authors.lastname: Tsujio
authors.affiliation: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Hoshino
authors.affiliation: Department of Orthopaedic Surgery and Spine Center, Shiraniwa Hospital, Ikoma, Nara; and.
authors.forename: Koji
authors.initials: K
authors.lastname: Mandai
authors.affiliation: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Nakamura
mesh_terms: D000072716:Cancer Pain / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D002812:Chondroma / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D019547:Neck Pain / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000601:surgery; D013125:Spinal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*
keywords: cervical spine; chondroma; intradural tumor; oncology; spinal tumor