{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T05:01:51Z","timestamp":1770354111653,"version":"3.49.0"},"reference-count":14,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"19","license":[{"start":{"date-parts":[[2022,11,7]],"date-time":"2022-11-07T00:00:00Z","timestamp":1667779200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,11,7]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Ossification of the posterior longitudinal ligament (OPLL) is a rare but potentially devastating cause of severe spinal cord compression and degenerative cervical myelopathy. Because OPLL is rarely accompanied by prominent syringomyelia, when both are observed, other causes of syringomyelia should be considered. Simultaneous presentation of OPLL and hemangioblastoma of the cervical spine is a rare encounter and has never been reported in the English-language literature.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>The authors present a case of a 64-year-old man with muscle weakness of the right upper limb and worsening dysesthesia of the right thumb and index finger. Noncontrast magnetic resonance imaging (MRI) of the cervical spine from another institution revealed OPLL from the C2 to C6 levels with severe spinal cord compression and prominent syringomyelia. Repeated MRI with contrast showed an intramedullary tumor, about 11 mm in diameter, at the right posterior aspect of the C4 level. The authors performed laminectomies from C1 to C6 with posterolateral fusion and removed the C4 tumor. Pathohistological examination of the tumor demonstrated hemangioblastoma.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>Careful evaluation of the preoperative imaging study is extremely important in surgical decision making. Although rare, concomitant cervical hemangioblastoma should be listed in the differential diagnosis when OPLL is accompanied with prominent syringomyelia.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case22371","type":"journal-article","created":{"date-parts":[[2022,11,7]],"date-time":"2022-11-07T03:47:54Z","timestamp":1667792874000},"source":"Crossref","is-referenced-by-count":1,"title":["Coexisting ossification of the posterior longitudinal ligament, intramedullary hemangioblastoma, and syringomyelia of the cervical spine: illustrative case"],"prefix":"10.3171","volume":"4","author":[{"given":"Chi-Ruei","family":"Li","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheng-Ying","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wen-Yu","family":"Cheng","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan"},{"name":"Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan"},{"name":"Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan"},{"name":"Department of Physical Therapy, Hung Kuang University, Taichung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hsin-Ni","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chih-Hsiang","family":"Liao","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan"},{"name":"Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan"},{"name":"Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan"},{"name":"School of Medicine, Taipei Medical University, Taipei, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chiung-Chyi","family":"Shen","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan"},{"name":"Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan"},{"name":"Department of Physical Therapy, Hung Kuang University, Taichung, Taiwan"},{"name":"Department of Neurosurgery, Neurological Institute, Tri-Service General Hospital, Taipei, Taiwan; and"},{"name":"Basic Medical Education Center, Central Taiwan University of Science and Technology, Taichung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"5","key":"b1","series-title":"Pract Neurol","doi-asserted-by":"publisher","first-page":"403","DOI":"10.1136\/practneurol-2021-002994","article-title":"Syringomyelia: diagnosis and management","volume":"21","author":"Flint G","year":"2021","unstructured":"Flint G. 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