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A Case of Transorbital Penetrating Brain Injury by a Blunt Metal Rod Tomohiro OKUNAGA 1 , Tsuyoshi IZUMO 1 , Tsutomu YOSHIOKA 1 , Tadashi SHIMIZU 2 , Hiromi YAMASHITA 3 , Hiroaki YOKOYAMA 1 1Department of Neurosurgery,Nagasaki Rosai Hospital 2Department of Neurosurgery,Juzenkai Hospital 3Yamashita No-Shinkei Geka Clinic Keyword: transorbital penetrating brain injury , magnetic resonance imaging , a metal rod pp.293-298
Published Date 2010/3/10
DOI https://doi.org/10.11477/mf.1436101133
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 This report presents a case of a transorbital penetrating brain injury caused by a metal rod. A 47-year-old male injured his left lower eyelid with no witness during working hours. The two days later, he presented with a right hand tremor and abnormal behavior, and was admitted to the hospital. A CT showed a bone fracture of the left orbital roof and a low-density lesion of the left frontal lobe. The initial diagnosis was a cerebral contusion due to a blow-out fracture. However, sagittal MR images on the tenth day in the hospital demonstrated a penetrating tract that was running linearly from the left orbital roof to the left caudate head. Therefore, the final diagnosis was a transorbital penetrating brain injury. This case had no severe complications in spite of the delayed diagnosis. Careful examinations are thus required in order to make a correct diagnosis at the first examination, because a transorbital penetrating brain injury might initially present as a slight wound with no neurological signs.


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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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