ArticleSurgical neurology international2017
Vestibular schwannoma appears to be very rare in a region of Sub-Saharan Africa.
Article in Surgical neurology international, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 8 citations in OpenAlex.
- Histomorphological Spectrum and Diagnostic Utility of S100, SOX10, CD34, Calretinin, and Ki67 in the Evaluation of Schwannomas: A Retrospective Study of 26 Cases in a Tertiary Health Institute, Zaria-Nigeria.Journal of the West African College of SurgeonsArticle
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7 authors at 1 institution in 1 country.
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Abstract
backgroundVestibular schwannoma (VS) is a significant neurosurgical problem hence it enjoys a special attention at conferences and workshops. It accounts for about 8-10% of all intracranial tumors with an annual incidence of about 11-14 per million per year. Most VS are sporadic with 5-10% attributed to neurofibromatosis type 2 (NF2). However, VS is alleged to be rare in Africans and uncommon in African Americans, connoting a racial bias. To our knowledge, no study from sub-Saharan Africa has addressed this subject. The aim of this study is to determine the frequency of VS in a tertiary neurosurgical hospital in sub-Saharan Africa.
methodsThis is a retrospective study of all intracranial neoplasms and VS managed in a major tertiary hospital in sub-Saharan Africa from January 2003 to December 2015. Patients' records and neuroimaging studies were reviewed retrospectively. Additionally, database of all cranial computed tomography (CT) and magnetic resonance imaging (MRI) done for various indications within the same period was searched retrospectively for "incidental" VS cases.
resultsOver the study period of 13 years, out of 612 cases of intracranial neoplasms, only three (0.49%) were VSs (two sporadic, one bilateral VS in NF2). A search for "incidental" cases of VS from a pool of 7475 cranial scans (CT: 5290; MRI: 2185), yielded none.
conclusionsThe findings strongly suggest that VS is very rare in the study population. It is hoped that other centers in Africa and beyond would perform similar studies.
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