期刊
AMERICAN JOURNAL OF RHINOLOGY
卷 22, 期 6, 页码 606-607出版社
OCEAN SIDE PUBLICATIONS INC
DOI: 10.2500/ajr.2008.22.3238
关键词
Anosmia; closed head injury; MRI; nervous system diseases; olfaction disorders; olfactory bulb; olfactory tracts; trauma
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 I 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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