{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T19:24:42Z","timestamp":1785871482449,"version":"3.56.0"},"reference-count":9,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec id=\"st1\">\n<jats:title>Background: <\/jats:title>\n<jats:p>Solitary bone plasmacytoma is a plasmatic cell dyscrasia; its presentation in the posterior fossa is very rare.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st2\">\n<jats:title>Case Description: <\/jats:title>\n<jats:p>We present two cases, a 59-year-old male and a 50-year-old female, both with heterogeneous clinical presentation. One had symptoms compatible with endocranial hypertension, and the other presented with a hemispheric cerebellar syndrome and ipsilateral trigeminal neuralgia. They were both related to an intraosseous tumor of the occipital region near the torcula with large extension to the posterior fossa. The diagnosis of a plasma cell neoplasm arising from the diploe of the squamous portion of the occipital bone was confirmed with immunohistochemistry.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st3\">\n<jats:title>Conclusion: <\/jats:title>\n<jats:p>The treatment for a cranial tumor that is suspected to be a solitary bone plasmacytoma requires a multidisciplinary team to diagnose, plan a total resection, and after surgery continue with the follow-up of the patient. Solitary bone plasmacytoma should be considered as a differential diagnosis for a tumor that produces cancellous bone widening without sclerotic borders.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_812_2021","type":"journal-article","created":{"date-parts":[[2022,1,5]],"date-time":"2022-01-05T06:06:33Z","timestamp":1641362793000},"page":"7","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Solitary bone plasmacytoma as posterior fossa cranial neoplasia, presentation of two clinical cases"],"prefix":"10.25259","volume":"13","author":[{"given":"Luis David Molina","family":"Andaluz","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Hospital de Especialidades, Centro M\u00e9dico Nacional Siglo XXI, IMSS, Ciudad de M\u00e9xico, Mexico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Josu\u00e9 Alejandro Cervantes","family":"Gonzalez","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Hospital de Especialidades, Centro M\u00e9dico Nacional Siglo XXI, IMSS, Ciudad de M\u00e9xico, Mexico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zita Elizabeth Salazar","family":"Ram\u00edrez","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Hospital de Especialidades, Centro M\u00e9dico Nacional Siglo XXI, IMSS, Ciudad de M\u00e9xico, Mexico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nelly","family":"Ram\u00edrez","sequence":"additional","affiliation":[{"name":"Department of Anatomopathology, Hospital de Especialidades, Centro M\u00e9dico Nacional Siglo XXI, IMSS, Ciudad de M\u00e9xico, Mexico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luis Guillermo","family":"Castellanos","sequence":"additional","affiliation":[{"name":"Department of Anatomopathology, Hospital de Especialidades, Centro M\u00e9dico Nacional Siglo XXI, IMSS, Ciudad de M\u00e9xico, Mexico."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric Misael Estrada","family":"Estrada","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Hospital de Especialidades, Centro M\u00e9dico Nacional Siglo XXI, IMSS, Ciudad de M\u00e9xico, Mexico."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10894","published-online":{"date-parts":[[2022,1,5]]},"reference":[{"key":"10.25259\/SNI_812_2021\/ref-1","doi-asserted-by":"crossref","first-page":"178","DOI":"10.1016\/j.surneu.2003.09.032","article-title":"Falcotentorial plasmacytoma: A case report","volume":"62","author":"Alappatt","year":"2004","journal-title":"Surg Neurol"},{"key":"10.25259\/SNI_812_2021\/ref-2","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/j.neuchi.2019.09.023","article-title":"Solitary plasmacytoma of the skull vault: A rare case 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plasma cell disorders","volume":"23","author":"Kumar","year":"2010","journal-title":"Best Pract Res Clin Haematol"},{"key":"10.25259\/SNI_812_2021\/ref-6","doi-asserted-by":"crossref","first-page":"263","DOI":"10.1007\/s11060-019-03089-z","article-title":"Clinical features, radiological profiles, and surgical outcomes of primary intracranial solitary plasmacytomas: A report of 17 cases and a pooled analysis of individual patient data","volume":"142","author":"Ma","year":"2019","journal-title":"J Neurooncol"},{"key":"10.25259\/SNI_812_2021\/ref-7","doi-asserted-by":"crossref","first-page":"231","DOI":"10.4103\/ajns.AJNS_219_17","article-title":"Skull vault plasmacytoma mimicking parasagittal meningioma: Mini-brain appearance","volume":"14","author":"Munjal","year":"2019","journal-title":"Asian J Neurosurg"},{"key":"10.25259\/SNI_812_2021\/ref-8","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1055\/s-0035-1560047","article-title":"Plasmacytoma of the skull base: A meta-analysis","volume":"77","author":"Na\u2019ara","year":"2016","journal-title":"J Neurol Surg B Skull Base"},{"key":"10.25259\/SNI_812_2021\/ref-9","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1007\/s12288-011-0126-7","article-title":"Cranial plasmacytoma: A case series and review of the literature","volume":"29","author":"Webb","year":"2013","journal-title":"Indian J Hematol Blood Transfus"}],"container-title":["Surgical Neurology 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