{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T18:33:31Z","timestamp":1787510011650,"version":"build-2736575974"},"reference-count":62,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"8","license":[{"start":{"date-parts":[[2025,8,25]],"date-time":"2025-08-25T00:00:00Z","timestamp":1756080000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Cosmet Laser Ther"],"published-print":{"date-parts":[[2025,8,25]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Multiple myeloma (MM) and plasmacytoma metastases to the spine are extremely rare, with 9 cases reported in the literature. Only 2 describe cases of solitary plasmacytoma (SP) specifically in the cervical spine, both in patients without known histories of MM. Therefore, the natural history of MM recurrence as SP in the cervical spine remains unknown.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>The authors describe the case of a 67-year-old woman with a history of MM after stem cell transplant and chemotherapy in remission for a year who presented with progressive cervical myelopathy found to have an intradural extramedullary solitary lesion at C2\u20133 on MRI of the whole spine. The patient underwent C1\u20133 laminectomies for decompression and intradural biopsy of the lesion, with pathology consistent with plasmacytoma. The patient\u2019s motor examination improved significantly postoperatively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>SP should be included in the differential diagnosis for intradural extramedullary lesions found in the spine, particularly in patients with a history of MM and tumor resistance to radiotherapy. Despite plasmacytoma\u2019s classically radiosensitive nature, it is possible to have residual tumor after radiation therapy. In these cases, patients may benefit greatly from surgical biopsy and decompression followed by adjuvant radiotherapy.<\/jats:p>\n                    <jats:p>\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/thejns.org\/doi\/10.3171\/CASE24731\">https:\/\/thejns.org\/doi\/10.3171\/CASE24731<\/jats:ext-link>\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case24731","type":"journal-article","created":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T23:49:17Z","timestamp":1756770557000},"source":"Crossref","is-referenced-by-count":1,"title":["Intradural extramedullary solitary plasmacytoma originating in the cervical spine in the setting of refractory multiple myeloma: illustrative case"],"prefix":"10.3171","volume":"10","author":[{"given":"Elaina J.","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Brown University Health, Providence, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8283-4532","authenticated-orcid":true,"given":"Giovanni","family":"Kozel","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Brown University Health, Providence, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5735-2654","authenticated-orcid":true,"given":"Carlin C.","family":"Chuck","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Brown University Health, Providence, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Punsoni","sequence":"additional","affiliation":[{"name":"Department of Neuropathology, Brown University Health, Providence, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patricia Z.","family":"Sullivan","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Brown University Health, Providence, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"4","key":"bib1","series-title":"Baillieres Clin Haematol","first-page":"705","article-title":"Plasma cell dyscrasias: classification, clinical and laboratory characteristics, and differential diagnosis","volume":"8","author":"Boccadoro","year":"1995","unstructured":"Boccadoro MPileri A.Plasma cell dyscrasias: classification, clinical and laboratory characteristics, and differential diagnosis. Baillieres Clin Haematol. 1995;8(4):705-719."},{"issue":"5","key":"bib2","series-title":"JAMA","first-page":"464","article-title":"Diagnosis and management of multiple myeloma: a review","volume":"327","author":"Cowan","year":"2022","unstructured":"Cowan AJGreen DJKwok MDiagnosis and management of multiple myeloma: a review. JAMA. 2022;327(5):464-477."},{"issue":"2","key":"bib3","series-title":"J Neurosurg Spine","first-page":"140","article-title":"Multiple myeloma of the cervical spine: treatment strategies for pain and spinal instability","volume":"5","author":"Rao","year":"2006","unstructured":"Rao GHa CSChakrabarti IFeiz-Erfan IMendel ERhines LD.Multiple myeloma of the cervical spine: treatment strategies for pain and spinal instability. J Neurosurg Spine. 2006;5(2):140-145."},{"issue":"1","key":"bib4","series-title":"Neurol Sci","first-page":"103","article-title":"Multiple myeloma with cauda equina infiltration","volume":"34","author":"Vale","year":"2013","unstructured":"Vale TCTeixeira GMFernandes BFSGomez RSTeixeira AL.Multiple myeloma with cauda equina infiltration. Neurol Sci. 2013;34(1):103-105."},{"issue":"1","key":"bib5","series-title":"J Hematol Oncol","first-page":"10","article-title":"Diagnosis, treatment, and response assessment in solitary plasmacytoma: updated recommendations from a European Expert Panel","volume":"11","author":"Caers","year":"2018","unstructured":"Caers JPaiva BZamagni EDiagnosis, treatment, and response assessment in solitary plasmacytoma: updated recommendations from a European Expert Panel. J Hematol Oncol. 2018;11(1):10."},{"issue":"12","key":"bib6","series-title":"Lancet Oncol","first-page":"e538","article-title":"International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma","volume":"15","author":"Rajkumar","year":"2014","unstructured":"Rajkumar SVDimopoulos MAPalumbo AInternational Myeloma Working Group updated criteria for the diagnosis of multiple myeloma. Lancet Oncol. 2014;15(12):e538-e548."},{"key":"bib7","series-title":"Hematol Am Soc Hematol Educ Program","first-page":"373","article-title":"Solitary bone and extramedullary plasmacytoma","author":"Weber","year":"2005;1","unstructured":"Weber DM.Solitary bone and extramedullary plasmacytoma. Hematol Am Soc Hematol Educ Program. 2005;1:373-376."},{"issue":"4","key":"bib8","series-title":"Int J Radiat Oncol Biol Phys","first-page":"794","article-title":"Radiation therapy for solitary plasmacytoma and multiple myeloma: guidelines from the international lymphoma radiation oncology group","volume":"101","author":"Tsang","year":"2018","unstructured":"Tsang RWCampbell BAGoda JSRadiation therapy for solitary plasmacytoma and multiple myeloma: guidelines from the international lymphoma radiation oncology group. Int J Radiat Oncol Biol Phys. 2018;101(4):794-808."},{"issue":"1","key":"bib9","series-title":"Clin J Am Soc Nephrol","first-page":"176","article-title":"Renal toxicities of novel agents used for treatment of multiple myeloma","volume":"12","author":"Wanchoo","year":"2017","unstructured":"Wanchoo RAbudayyeh ADoshi MRenal toxicities of novel agents used for treatment of multiple myeloma. Clin J Am Soc Nephrol. 2017;12(1):176-189."},{"issue":"6","key":"bib10","series-title":"Blood","first-page":"2962","article-title":"Multiple myeloma","volume":"111","author":"Kyle","year":"2008","unstructured":"Kyle RARajkumar SV.Multiple myeloma. Blood. 2008;111(6):2962-2972."},{"issue":"6","key":"bib11","series-title":"Am J Clin Oncol","first-page":"612","article-title":"Solitary plasmacytoma","volume":"32","author":"Dagan","year":"2009","unstructured":"Dagan RMorris CGKirwan JMendenhall WM.Solitary plasmacytoma. Am J Clin Oncol. 2009;32(6):612-617."},{"issue":"2","key":"bib12","series-title":"Cancer Med","first-page":"462","article-title":"Survival trends and prognostic factors in patients with solitary plasmacytoma of bone: a population-based study","volume":"10","author":"Shen","year":"2021","unstructured":"Shen XLiu SWu CWang JLi JChen L.Survival trends and prognostic factors in patients with solitary plasmacytoma of bone: a population-based study. Cancer Med. 2021;10(2):462-470."},{"issue":"5","key":"bib13","series-title":"Clin Med (Lond)","first-page":"e191","article-title":"Clinical presentation and outcomes of solitary plasmacytoma in a tertiary hospital in the UK","volume":"20","author":"Agbuduwe","year":"2020","unstructured":"Agbuduwe CYang HGaglani JAjithkumar T.Clinical presentation and outcomes of solitary plasmacytoma in a tertiary hospital in the UK. Clin Med (Lond). 2020;20(5):e191-e195."},{"issue":"2","key":"bib14","series-title":"J Spinal Cord Med","first-page":"204","article-title":"Patient outcomes and survival following surgery for spinal metastases","volume":"44","author":"Yaari","year":"2021","unstructured":"Yaari LSNovack LShemesh SPatient outcomes and survival following surgery for spinal metastases. J Spinal Cord Med. 2021;44(2):204-211."},{"issue":"3","key":"bib15","series-title":"Radiother Oncol","first-page":"335","article-title":"The surgical treatment of metastatic disease of the spine","volume":"56","author":"Hatrick","year":"2000","unstructured":"Hatrick NCLucas JDTimothy ARSmith MA.The surgical treatment of metastatic disease of the spine. Radiother Oncol. 2000;56(3):335-339."},{"issue":"1","key":"bib16","series-title":"J Am Acad Orthop Surg","first-page":"38","article-title":"Management of metastatic cervical spine tumors","volume":"23","author":"Mesfin","year":"2015","unstructured":"Mesfin ABuchowski JMGokaslan ZLBird JE.Management of metastatic cervical spine tumors. J Am Acad Orthop Surg. 2015;23(1):38-46."},{"issue":"3","key":"bib17","series-title":"Clin Case Rep","first-page":"e7069","article-title":"A rare multiple myeloma complication as a spinal cord metastasis: a case report","volume":"11","author":"Mansour","year":"2023","unstructured":"Mansour MHaider ZAl Khiami LA rare multiple myeloma complication as a spinal cord metastasis: a case report. Clin Case Rep. 2023;11(3):e7069."},{"issue":"1","key":"bib18","series-title":"J Med Case Rep","first-page":"189","article-title":"Multiple myeloma presenting as an intramedullary spinal cord tumor: a case report and review of the literature","volume":"14","author":"Di","year":"2020","unstructured":"Di LHuang KKesayan TMultiple myeloma presenting as an intramedullary spinal cord tumor: a case report and review of the literature. J Med Case Rep. 2020;14(1):189."},{"issue":"suppl 1","key":"bib19","series-title":"J Neurol Surg A Cent Eur Neurosurg","first-page":"e13","article-title":"Solitary plasmacytoma presenting as an intramedullary mass of the cervical cord","volume":"74","author":"Hans","year":"2013","unstructured":"Hans FJGeibprassert SKrings TSolitary plasmacytoma presenting as an intramedullary mass of the cervical cord. J Neurol Surg A Cent Eur Neurosurg. 2013;74(suppl 1):e13-e17."},{"issue":"1","key":"bib20","series-title":"J Neurosurg Spine","first-page":"57","article-title":"An extramedullary plasmacytoma originating from the thoracic spinal cord: magnetic resonance imaging findings. Case report","volume":"6","author":"Gao","year":"2007","unstructured":"Gao BWang X.An extramedullary plasmacytoma originating from the thoracic spinal cord: magnetic resonance imaging findings. Case report. J Neurosurg Spine. 2007;6(1):57-59."},{"issue":"3","key":"bib21","series-title":"Biomedicine","first-page":"45","article-title":"Multiple myeloma with intracranial and spinal intradural metastasis: a case report","volume":"10","author":"Hsu","year":"2020","unstructured":"Hsu WLGuo JHHung YYCho DYChen DC.Multiple myeloma with intracranial and spinal intradural metastasis: a case report. Biomedicine. 2020;10(3):45-49."},{"issue":"5","key":"bib22","series-title":"Acta Neurochir (Wien)","first-page":"529","article-title":"Solitary thoracic intradural extramedullary plasmacytoma","volume":"149","author":"Zazpe","year":"2007","unstructured":"Zazpe ICaballero CCabada TGuerrero DGallo-Ruiz APortillo E.Solitary thoracic intradural extramedullary plasmacytoma. Acta Neurochir (Wien). 2007;149(5):529-532."},{"issue":"2","key":"bib23","series-title":"J Neurosurg Sci","first-page":"125","article-title":"Spinal cord compression by solitary plasmocytoma","volume":"27","author":"Lucantoni","year":"1983","unstructured":"Lucantoni DGalzio RZenobii MGrizzi LCCaffagni E.Spinal cord compression by solitary plasmocytoma. J Neurosurg Sci. 1983;27(2):125-127."},{"issue":"1","key":"bib24","series-title":"Spinal Cord","first-page":"44","article-title":"Transverse syndrome as the dominant feature of solitary cervical plasmocytoma with dissemination","volume":"40","author":"Finsterer","year":"2002","unstructured":"Finsterer JKladosek AGornik ABirkner T.Transverse syndrome as the dominant feature of solitary cervical plasmocytoma with dissemination. Spinal Cord. 2002;40(1):44-47."},{"issue":"1","key":"bib25","series-title":"J Neurosurg","first-page":"107","article-title":"Intradural extramedullary plasmacytoma.","volume":"16","author":"Sod","year":"1959","unstructured":"Sod LMWiener LM.Intradural extramedullary plasmacytoma.J Neurosurg. 1959;16(1):107-109."},{"issue":"3","key":"bib26","series-title":"J Craniovertebr Junction Spine","first-page":"192","article-title":"An unusual case of solitary spinal intradural plasmacytoma: the unforeseen challenge","volume":"10","author":"Singh","year":"2019","unstructured":"Singh SKumar ABhaisora KSSrivastava AKBehari S.An unusual case of solitary spinal intradural plasmacytoma: the unforeseen challenge. J Craniovertebr Junction Spine. 2019;10(3):192-196."},{"issue":"6","key":"bib27","series-title":"J Neurosurg Case Lessons","first-page":"CASE20106","article-title":"Intradural plasmacytoma originating from the filum terminale in the setting of multiple myeloma: illustrative case","volume":"1","author":"Glasser","year":"2021","unstructured":"Glasser JGlasser R.Intradural plasmacytoma originating from the filum terminale in the setting of multiple myeloma: illustrative case. J Neurosurg Case Lessons. 2021;1(6):CASE20106."},{"issue":"2","key":"bib28","series-title":"J Neurooncol","first-page":"395","article-title":"A current review of spinal meningiomas: epidemiology, clinical presentation and management","volume":"161","author":"Elsamadicy","year":"2023","unstructured":"Elsamadicy AAReeves BCCraft SA current review of spinal meningiomas: epidemiology, clinical presentation and management. J Neurooncol. 2023;161(2):395-404."},{"key":"bib29","series-title":"Front Oncol","first-page":"1084404","article-title":"Spinal meningiomas, from biology to management\u2014a literature review","volume":"12","author":"Serratrice","year":"2022","unstructured":"Serratrice NLameche IAttieh CSpinal meningiomas, from biology to management\u2014a literature review. Front Oncol. 2022;12:1084404."},{"issue":"5","key":"bib30","series-title":"J Neurosurg Spine","first-page":"661","article-title":"The epidemiology of spinal schwannoma in the United States between 2006 and 2014","volume":"32","author":"Tish","year":"2020","unstructured":"Tish SHabboub GLang MThe epidemiology of spinal schwannoma in the United States between 2006 and 2014. J Neurosurg Spine. 2020;32(5):661-666."},{"issue":"6","key":"bib31","series-title":"Blood","first-page":"2037","article-title":"Solitary plasmacytoma of bone and asymptomatic multiple myeloma","volume":"96","author":"Dimopoulos","year":"2000","unstructured":"Dimopoulos MAMoulopoulos LAManiatis AAlexanian R.Solitary plasmacytoma of bone and asymptomatic multiple myeloma. Blood. 2000;96(6):2037-2044."},{"issue":"4","key":"bib1","series-title":"Baillieres Clin Haematol","first-page":"705","article-title":"Plasma cell dyscrasias: classification, clinical and laboratory characteristics, and differential diagnosis","volume":"8","author":"Boccadoro","year":"1995","unstructured":"Boccadoro MPileri A.Plasma cell dyscrasias: classification, clinical and laboratory characteristics, and differential diagnosis. Baillieres Clin Haematol. 1995;8(4):705-719."},{"issue":"5","key":"bib2","series-title":"JAMA","first-page":"464","article-title":"Diagnosis and management of multiple myeloma: a review","volume":"327","author":"Cowan","year":"2022","unstructured":"Cowan AJGreen DJKwok MDiagnosis and management of multiple myeloma: a review. JAMA. 2022;327(5):464-477."},{"issue":"2","key":"bib3","series-title":"J Neurosurg Spine","first-page":"140","article-title":"Multiple myeloma of the cervical spine: treatment strategies for pain and spinal instability","volume":"5","author":"Rao","year":"2006","unstructured":"Rao GHa CSChakrabarti IFeiz-Erfan IMendel ERhines LD.Multiple myeloma of the cervical spine: treatment strategies for pain and spinal instability. J Neurosurg Spine. 2006;5(2):140-145."},{"issue":"1","key":"bib4","series-title":"Neurol Sci","first-page":"103","article-title":"Multiple myeloma with cauda equina infiltration","volume":"34","author":"Vale","year":"2013","unstructured":"Vale TCTeixeira GMFernandes BFSGomez RSTeixeira AL.Multiple myeloma with cauda equina infiltration. Neurol Sci. 2013;34(1):103-105."},{"issue":"1","key":"bib5","series-title":"J Hematol Oncol","first-page":"10","article-title":"Diagnosis, treatment, and response assessment in solitary plasmacytoma: updated recommendations from a European Expert Panel","volume":"11","author":"Caers","year":"2018","unstructured":"Caers JPaiva BZamagni EDiagnosis, treatment, and response assessment in solitary plasmacytoma: updated recommendations from a European Expert Panel. J Hematol Oncol. 2018;11(1):10."},{"issue":"12","key":"bib6","series-title":"Lancet Oncol","first-page":"e538","article-title":"International Myeloma Working Group updated criteria for the diagnosis of multiple myeloma","volume":"15","author":"Rajkumar","year":"2014","unstructured":"Rajkumar SVDimopoulos MAPalumbo AInternational Myeloma Working Group updated criteria for the diagnosis of multiple myeloma. Lancet Oncol. 2014;15(12):e538-e548."},{"key":"bib7","series-title":"Hematol Am Soc Hematol Educ Program","first-page":"373","article-title":"Solitary bone and extramedullary plasmacytoma","author":"Weber","year":"2005;1","unstructured":"Weber DM.Solitary bone and extramedullary plasmacytoma. Hematol Am Soc Hematol Educ Program. 2005;1:373-376."},{"issue":"4","key":"bib8","series-title":"Int J Radiat Oncol Biol Phys","first-page":"794","article-title":"Radiation therapy for solitary plasmacytoma and multiple myeloma: guidelines from the international lymphoma radiation oncology group","volume":"101","author":"Tsang","year":"2018","unstructured":"Tsang RWCampbell BAGoda JSRadiation therapy for solitary plasmacytoma and multiple myeloma: guidelines from the international lymphoma radiation oncology group. Int J Radiat Oncol Biol Phys. 2018;101(4):794-808."},{"issue":"1","key":"bib9","series-title":"Clin J Am Soc Nephrol","first-page":"176","article-title":"Renal toxicities of novel agents used for treatment of multiple myeloma","volume":"12","author":"Wanchoo","year":"2017","unstructured":"Wanchoo RAbudayyeh ADoshi MRenal toxicities of novel agents used for treatment of multiple myeloma. Clin J Am Soc Nephrol. 2017;12(1):176-189."},{"issue":"6","key":"bib10","series-title":"Blood","first-page":"2962","article-title":"Multiple myeloma","volume":"111","author":"Kyle","year":"2008","unstructured":"Kyle RARajkumar SV.Multiple myeloma. Blood. 2008;111(6):2962-2972."},{"issue":"6","key":"bib11","series-title":"Am J Clin Oncol","first-page":"612","article-title":"Solitary plasmacytoma","volume":"32","author":"Dagan","year":"2009","unstructured":"Dagan RMorris CGKirwan JMendenhall WM.Solitary plasmacytoma. Am J Clin Oncol. 2009;32(6):612-617."},{"issue":"2","key":"bib12","series-title":"Cancer Med","first-page":"462","article-title":"Survival trends and prognostic factors in patients with solitary plasmacytoma of bone: a population-based study","volume":"10","author":"Shen","year":"2021","unstructured":"Shen XLiu SWu CWang JLi JChen L.Survival trends and prognostic factors in patients with solitary plasmacytoma of bone: a population-based study. Cancer Med. 2021;10(2):462-470."},{"issue":"5","key":"bib13","series-title":"Clin Med (Lond)","first-page":"e191","article-title":"Clinical presentation and outcomes of solitary plasmacytoma in a tertiary hospital in the UK","volume":"20","author":"Agbuduwe","year":"2020","unstructured":"Agbuduwe CYang HGaglani JAjithkumar T.Clinical presentation and outcomes of solitary plasmacytoma in a tertiary hospital in the UK. Clin Med (Lond). 2020;20(5):e191-e195."},{"issue":"2","key":"bib14","series-title":"J Spinal Cord Med","first-page":"204","article-title":"Patient outcomes and survival following surgery for spinal metastases","volume":"44","author":"Yaari","year":"2021","unstructured":"Yaari LSNovack LShemesh SPatient outcomes and survival following surgery for spinal metastases. J Spinal Cord Med. 2021;44(2):204-211."},{"issue":"3","key":"bib15","series-title":"Radiother Oncol","first-page":"335","article-title":"The surgical treatment of metastatic disease of the spine","volume":"56","author":"Hatrick","year":"2000","unstructured":"Hatrick NCLucas JDTimothy ARSmith MA.The surgical treatment of metastatic disease of the spine. Radiother Oncol. 2000;56(3):335-339."},{"issue":"1","key":"bib16","series-title":"J Am Acad Orthop Surg","first-page":"38","article-title":"Management of metastatic cervical spine tumors","volume":"23","author":"Mesfin","year":"2015","unstructured":"Mesfin ABuchowski JMGokaslan ZLBird JE.Management of metastatic cervical spine tumors. J Am Acad Orthop Surg. 2015;23(1):38-46."},{"issue":"3","key":"bib17","series-title":"Clin Case Rep","first-page":"e7069","article-title":"A rare multiple myeloma complication as a spinal cord metastasis: a case report","volume":"11","author":"Mansour","year":"2023","unstructured":"Mansour MHaider ZAl Khiami LA rare multiple myeloma complication as a spinal cord metastasis: a case report. Clin Case Rep. 2023;11(3):e7069."},{"issue":"1","key":"bib18","series-title":"J Med Case Rep","first-page":"189","article-title":"Multiple myeloma presenting as an intramedullary spinal cord tumor: a case report and review of the literature","volume":"14","author":"Di","year":"2020","unstructured":"Di LHuang KKesayan TMultiple myeloma presenting as an intramedullary spinal cord tumor: a case report and review of the literature. J Med Case Rep. 2020;14(1):189."},{"issue":"suppl 1","key":"bib19","series-title":"J Neurol Surg A Cent Eur Neurosurg","first-page":"e13","article-title":"Solitary plasmacytoma presenting as an intramedullary mass of the cervical cord","volume":"74","author":"Hans","year":"2013","unstructured":"Hans FJGeibprassert SKrings TSolitary plasmacytoma presenting as an intramedullary mass of the cervical cord. J Neurol Surg A Cent Eur Neurosurg. 2013;74(suppl 1):e13-e17."},{"issue":"1","key":"bib20","series-title":"J Neurosurg Spine","first-page":"57","article-title":"An extramedullary plasmacytoma originating from the thoracic spinal cord: magnetic resonance imaging findings. Case report","volume":"6","author":"Gao","year":"2007","unstructured":"Gao BWang X.An extramedullary plasmacytoma originating from the thoracic spinal cord: magnetic resonance imaging findings. Case report. J Neurosurg Spine. 2007;6(1):57-59."},{"issue":"3","key":"bib21","series-title":"Biomedicine","first-page":"45","article-title":"Multiple myeloma with intracranial and spinal intradural metastasis: a case report","volume":"10","author":"Hsu","year":"2020","unstructured":"Hsu WLGuo JHHung YYCho DYChen DC.Multiple myeloma with intracranial and spinal intradural metastasis: a case report. Biomedicine. 2020;10(3):45-49."},{"issue":"5","key":"bib22","series-title":"Acta Neurochir (Wien)","first-page":"529","article-title":"Solitary thoracic intradural extramedullary plasmacytoma","volume":"149","author":"Zazpe","year":"2007","unstructured":"Zazpe ICaballero CCabada TGuerrero DGallo-Ruiz APortillo E.Solitary thoracic intradural extramedullary plasmacytoma. Acta Neurochir (Wien). 2007;149(5):529-532."},{"issue":"2","key":"bib23","series-title":"J Neurosurg Sci","first-page":"125","article-title":"Spinal cord compression by solitary plasmocytoma","volume":"27","author":"Lucantoni","year":"1983","unstructured":"Lucantoni DGalzio RZenobii MGrizzi LCCaffagni E.Spinal cord compression by solitary plasmocytoma. J Neurosurg Sci. 1983;27(2):125-127."},{"issue":"1","key":"bib24","series-title":"Spinal Cord","first-page":"44","article-title":"Transverse syndrome as the dominant feature of solitary cervical plasmocytoma with dissemination","volume":"40","author":"Finsterer","year":"2002","unstructured":"Finsterer JKladosek AGornik ABirkner T.Transverse syndrome as the dominant feature of solitary cervical plasmocytoma with dissemination. Spinal Cord. 2002;40(1):44-47."},{"issue":"1","key":"bib25","series-title":"J Neurosurg","first-page":"107","article-title":"Intradural extramedullary plasmacytoma.","volume":"16","author":"Sod","year":"1959","unstructured":"Sod LMWiener LM.Intradural extramedullary plasmacytoma.J Neurosurg. 1959;16(1):107-109."},{"issue":"3","key":"bib26","series-title":"J Craniovertebr Junction Spine","first-page":"192","article-title":"An unusual case of solitary spinal intradural plasmacytoma: the unforeseen challenge","volume":"10","author":"Singh","year":"2019","unstructured":"Singh SKumar ABhaisora KSSrivastava AKBehari S.An unusual case of solitary spinal intradural plasmacytoma: the unforeseen challenge. J Craniovertebr Junction Spine. 2019;10(3):192-196."},{"issue":"6","key":"bib27","series-title":"J Neurosurg Case Lessons","first-page":"CASE20106","article-title":"Intradural plasmacytoma originating from the filum terminale in the setting of multiple myeloma: illustrative case","volume":"1","author":"Glasser","year":"2021","unstructured":"Glasser JGlasser R.Intradural plasmacytoma originating from the filum terminale in the setting of multiple myeloma: illustrative case. J Neurosurg Case Lessons. 2021;1(6):CASE20106."},{"issue":"2","key":"bib28","series-title":"J Neurooncol","first-page":"395","article-title":"A current review of spinal meningiomas: epidemiology, clinical presentation and management","volume":"161","author":"Elsamadicy","year":"2023","unstructured":"Elsamadicy AAReeves BCCraft SA current review of spinal meningiomas: epidemiology, clinical presentation and management. 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