An Extradural En-Plaque Meningioma Involving Thoracic Spine

Min Soo Kang; Kyu Pill Moon; Kyung Taek Kim; Won Ro Park; Won Seok Park; Kyoung Shin Lee

doi:10.4055/jkoa.2014.49.5.400

Journal List > J Korean Orthop Assoc > v.49(5) > 1013329

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Kang, Moon, Kim, Park, Park, and Lee: An Extradural En-Plaque Meningioma Involving Thoracic Spine

Case Report

Journal of the Korean Orthopaedic Association 2014; 49(5): 400-404.

Published online: 30 October 2014

DOI: https://doi.org/10.4055/jkoa.2014.49.5.400

An Extradural En-Plaque Meningioma Involving Thoracic Spine

Min Soo Kang, M.D., Kyu Pill Moon, M.D., Kyung Taek Kim, M.D., Won Ro Park, M.D., Won Seok Park, M.D., Kyoung Shin Lee, M.D.^*

Department of Orthopaedic Surgery, Dong-Eui Medical Center, Busan, Korea.

^*Department of Pathology, Dong-Eui Medical Center, Busan, Korea.

Correspondence to: Won Ro Park, M.D. Department of Orthopaedic Surgery, Dong-Eui Medical Center, 62 Yangjeong-ro, Busanjin-gu, Busan 614-710, Korea. TEL: +82-51-850-8937, FAX: +82-51-850-8943, wonro@hanmail.net

Received 25 April 2014 Revised 3 July 2014 Accepted 11 July 2014

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Reports of extradural spinal meningioma are rare, and differentiation from a metastatic lesion is important. We treated a case of thoracic extradural meningioma with surgical excision and obtained a favorable outcome without recurrence during one-year follow-up. Thus, we report on a case with review of the literature.

Keywords: meningioma, extradural

Figures and Tables

Figure 1

(A) On T1-weighted images, a mass separated from dura mater that compressed the spinal cord at the 6th and 7th thoracic vertebral level was seen on a sagittal image and a widened right neural foramen with compression of the 6th thoracic nerve root by the mass was seen on an axial image. (B) On T2-weighted images, the mass showed relatively homogeneous similar signal intensity with the spinal cord. (C) On gadolinium-enhanced images, the mass was enhanced homogeneously and distinguished from dura mater.

Figure 2

(A) The mass was seen on posterior dura mater intraoperatively. (B) The mass was completely excised.

Figure 3

Postoperative plain radiograph showed posterior fixation.

Figure 4

(A) The meningotheliomatous tumor cells were arranged in nests reminiscent of paraganglioma with hyalinized stromal vasculature. The tumor cells invaded into adjacent fat tissue (H&E, ×40). (B) Nests of meningotheliomatous tumor cells with several psammoma bodies and proliperated hyalinized vasculatures are noted. Mitosis is not seen (H&E, ×100).

Figure 5

(A) On T2-weighted image, there was no local recurrence at one-year follow-up. (B) On a plain radiograph at one-year follow-up, mild kyphosis was seen.

References

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