{"title":"Posttraumatic anosmia secondary to central nervous system injury.","authors":"Amy P Wu, Terence Davidson","doi":"10.2500/ajr.2008.22.3238","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The presumed pathogenesis of posttraumatic anosmia is stretching or shearing of the olfactory nerves in a coup-contracoup head contusion. Direct injury to the brain is an alternate mechanism of injury. In this study we report a case where direct injury to the brain is the probable mechanism of injury.</p><p><strong>Methods: </strong>A case report was performed.</p><p><strong>Results: </strong>A 55-year-old man presented with loss of smell beginning 1 month after a closed head injury with loss of consciousness. The MRI showed posttraumatic scarring in the region of the olfactory bulbs.</p><p><strong>Conclusion: </strong>This case suggests that central nervous system injury to the olfactory bulbs and tracts may be a mechanism of posttraumatic anosmia.</p>","PeriodicalId":72175,"journal":{"name":"American journal of rhinology","volume":"22 6","pages":"606-7"},"PeriodicalIF":0.0000,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2500/ajr.2008.22.3238","citationCount":"28","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"American journal of rhinology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2500/ajr.2008.22.3238","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 28
Abstract
Background: The presumed pathogenesis of posttraumatic anosmia is stretching or shearing of the olfactory nerves in a coup-contracoup head contusion. Direct injury to the brain is an alternate mechanism of injury. In this study we report a case where direct injury to the brain is the probable mechanism of injury.
Methods: A case report was performed.
Results: A 55-year-old man presented with loss of smell beginning 1 month after a closed head injury with loss of consciousness. The MRI showed posttraumatic scarring in the region of the olfactory bulbs.
Conclusion: This case suggests that central nervous system injury to the olfactory bulbs and tracts may be a mechanism of posttraumatic anosmia.
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