title: A periosteal chondroma in the lumbar spinal canal. Case report.
abstract: Periosteal chondromas located in the spine are rare. The authors document a case of periosteal chondroma in the lumbar spinal canal of a 77-year-old man. The patient had severe pain in his right leg and used a wheelchair because of weakness in both legs. Magnetic resonance imaging revealed a round tumor that was hypo- or isointense on T1-weighted images and uniformly hyperintense on T2-weighted images. Administration of gadolinium-diethylenetriamine pentaacetic acid resulted in margin enhancement on T1-weighted images. During the operation, a round tumor 1.5 cm in diameter was found on the surface of the anterior wall of the L-3 lamina. Histological examination revealed that the tumor consisted of chondroid tissue with typical chondrocytes, indicating that it was a periosteal chondroma.
authors.affiliation: Department of Orthopaedic Surgery, Ehime University School of Medicine, Tohon City, Ehime, Japan. ogata@m.ehime-u.ac.jp
authors.forename: Tadanori
authors.initials: T
authors.lastname: Ogata
authors.forename: Tatsuhiko
authors.initials: T
authors.lastname: Miyazaki
authors.forename: Tadao
authors.initials: T
authors.lastname: Morino
authors.forename: Masato
authors.initials: M
authors.lastname: Nose
authors.forename: Haruyasu
authors.initials: H
authors.lastname: Yamamoto
mesh_terms: D000368:Aged; D002812:Chondroma / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans; D008159:Lumbar Vertebrae; D008297:Male; D010521:Periosteum; D013115:Spinal Canal; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000601:surgery*