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Spinal Cord Compression by Ligamentum Flavum Hematoma in the Thoracic Spine

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Title: Spinal Cord Compression by Ligamentum Flavum Hematoma in the Thoracic Spine
Authors: Sudo, Hideki Browse this author
Abumi, Kuniyoshi Browse this author
Ito, Manabu Browse this author
Kotani, Yoshihisa Browse this author
Takahata, Masahiko Browse this author
Hojo, Yoshihiro Browse this author
Sanda, Masatoshi Browse this author
Minami, Akio Browse this author
Keywords: ligamentum flavum
thoracic spine
Issue Date: 1-Dec-2009
Publisher: Lippincott Williams & Wilkins
Journal Title: Spine
Volume: 34
Issue: 25
Start Page: E942
End Page: E944
Publisher DOI: 10.1097/BRS.0b013e3181b3f87c
PMID: 19940726
Abstract: Study Design. Case report. Objective. To report an extremely rare case of hematoma derived from the ligamentum flavum within the thoracic spine. Summary of Background Data. Only one previous case has been reported of a hematoma derived from the ligamentum flavum in the thoracic spine. Methods. A 61-year-old male presented with gait disturbance and numbness below the navel. Magnetic resonance imaging (MRI) on the 16th day after the onset of the symptoms showed spinal cord compression at the T10-11 level caused by a round mass. This intraspinal, extradural space occupying lesion, continuous with ligamentum flavum was centrally hypointense and marginal hyperintense on a T1-weighted image and central heterogeneous and marginal hypointense on a T2-weighted image. The wall of the lesion was slightly enhanced after use of a contrast medium. Results. The patient underwent a T10 laminectomy and the mass was carefully resected from the dura mater. Histologic examination showed that the wall of the mass comprised fibrous connective tissue that contained elastic fibers derived from a degenerative ligamentum flavum tear. It also revealed evidence of previous hemorrhagic events within the mass. There was no evidence of neoplastic nor synovial tissue. After surgery, the patient's numbness and gait disturbance disappeared. Conclusion. This report identifies an extremely rare case of spinal cord compression by a hematoma from the ligamentum flavum within the thoracic spine.
Rights: This is a non-final version of an article published in final form in Spine, 1 December 2009, Volume 34, Issue 25, pp E942-E944
Type: article (author version)
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 須藤 英毅

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