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Case Reports in Orthopedics
Volume 2019, Article ID 3131628, 5 pages
https://doi.org/10.1155/2019/3131628
Case Report

A Rare Case of Acute-Onset Spastic Quadriparesis Caused by a Chondroma of the Cervical Spine

1Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
2Department of Orthopedics, Takamatsu Municipal Hospital, Takamatsu, Japan

Correspondence should be addressed to Koichi Sairyo; moc.liamtoh@nukoyrias

Received 8 February 2019; Revised 15 April 2019; Accepted 5 May 2019; Published 23 May 2019

Academic Editor: Akio Sakamoto

Copyright © 2019 Kaori Momota et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Chondromas are benign cartilaginous tumors that occur very rarely in the spine. Moreover, chondromas of the extraskeletal origin are also very rare. In this case report, we describe an extremely rare case of chondroma arising from the ligamentum flavum in the cervical spine. A 67-year-old man presented to our clinic with acute-onset spastic quadriparesis. We performed emergent magnetic resonance imaging and found an epidural mass in the right ligamentum flavum at C4-C5. The acute-onset presentation was suspicious for intraligamentous hematoma in the ligamentum flavum at this level. We performed emergency decompression surgery and en bloc removal of the epidural mass with the right C4 and C5 lamina. The lesion had the appearance of cartilaginous tissue rather than hematoma. Based on the histological investigation, the final diagnosis was intraligamentous chondroma of the cervical spine. The quadriparesis improved postoperatively, as did the results of manual muscle testing in the affected area, and he was able to resume walking independently with a cane. At the one-year follow-up, the manual muscle testing results were almost normal. Surgeons should keep in mind the possibility of benign tumors including chondroma of the cervical spine when a patient presents with acute-onset quadriparesis.