{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T05:33:42Z","timestamp":1770356022377,"version":"3.49.0"},"reference-count":24,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"20","license":[{"start":{"date-parts":[[2021,5,17]],"date-time":"2021-05-17T00:00:00Z","timestamp":1621209600000},"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":[[2021,5,17]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>The authors reported on the use of endoscopic endonasal surgery (EES) for clivus osteochondroma in a patient with hereditary multiple exostoses (HME), a rare pediatric disorder characterized by the formation of osteochondromas adjacent to the growth plates of the axial and appendicular skeletal elements.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>A 26-year-old man with a family history of HME reported progressive hoarseness and dysphagia over the previous 6 months. He was referred to us after magnetic resonance imaging (MRI) showed a bone tumor in the lower clivus. MRI revealed tumor proliferation in the lower clivus and its extension to the bilateral occipital condyle and jugular tubercle. The hypoglossal canal and jugular foramen were encased on the right side, whereas the medulla oblongata was compressed. The tumor was subtotally resected with EES, and the brainstem was successfully decompressed. The pathological diagnosis was exostoses. Transient postoperative worsening of dysphagia improved within 1 month without other neurological deficits. The patient underwent posterior occipitoaxial fixation 3 months after EES to correct instability and local lateral tilt of the right atlanto-occipital joint.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>The authors\u2019 experience showed that EES is effective for resection of lower clivus osteochondromas, including the cartilaginous cap, and may improve clinical outcomes in patients with HME.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case2153","type":"journal-article","created":{"date-parts":[[2021,5,17]],"date-time":"2021-05-17T15:50:40Z","timestamp":1621266640000},"source":"Crossref","is-referenced-by-count":1,"title":["Endoscopic endonasal extreme far-medial approach for a lower clivus osteochondroma in a patient with hereditary multiple exostoses: illustrative case"],"prefix":"10.3171","volume":"1","author":[{"given":"Yusuke","family":"Morinaga","sequence":"first","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyoshi","family":"Akutsu","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyoshi","family":"Kino","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuho","family":"Tanaka","sequence":"additional","affiliation":[{"name":"Otolaryngology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidetaka","family":"Miyamoto","sequence":"additional","affiliation":[{"name":"Otolaryngology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masahide","family":"Matsuda","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Muneyoshi","family":"Yasuda","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Ichinomiyanishi Hospital, Ichinomiya, Aichi, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eiichi","family":"Ishikawa","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"3","key":"b1","series-title":"Best Pract Res Clin Rheumatol","doi-asserted-by":"publisher","first-page":"101505","DOI":"10.1016\/j.berh.2020.101505","article-title":"Multiple hereditary exostoses and enchondromatosis","volume":"34","author":"Jurik AG","year":"2020","unstructured":"Jurik AG. 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