Spinal metaplastic meningioma with osseous differentiation in the ventral thoracic spinal canal

Kentaro Yamane, Masato Tanaka, Yoshihisa Sugimoto, Kouichi Ichimura, Toshifumi Ozaki

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Ossified meningioma is classified histologically as a phenotype of metaplastic meningioma, and it is extremely rare. There are only 12 cases involving ossified spinal meningiomas in the literature. We present the case of a 61-year-old female with a primary tumor within the ventral spinal canal at T12. Although we performed a total tumor excision using an ultrasonic bone aspirator, a temporary deterioration of motor evoked potentials (MEPs) was observed during curettage with a Kerrison rongeur. The neurologic findings worsened immediately after surgery. Histologically, the tumor was diagnosed as a metaplastic meningioma with osseous differentiation. In order to avoid spinal cord injury, great care must be taken when removing an ossified meningioma located on the ventral spinal cord.

Original languageEnglish
Pages (from-to)313-316
Number of pages4
JournalActa medica Okayama
Volume68
Issue number5
Publication statusPublished - 2014

Keywords

  • Osseous differentiation
  • Ossified meningioma
  • Post-operative course
  • Ultrasonic bone aspirator
  • spinal metaplastic meningioma

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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