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  • Title: [Bilateral traumatic hemorrhage in the basal ganglia: report of two cases].
    Author: Yanaka K, Egashira T, Maki Y, Takano S, Okazaki M, Matsumaru Y, Kamezaki T, Ono Y, Nose T.
    Journal: No Shinkei Geka; 1991 Apr; 19(4):369-73. PubMed ID: 2046852.
    Abstract:
    Hematomas of the basal ganglia in head injury have long been recognized by pathologists with an interest in head injury but their mechanism has not been revealed clearly. We report two cases of bilateral traumatic hemorrhage in the basal ganglia. Case #1, a 17-year-old male was admitted to our hospital immediately after a traffic accident. Neurological examination revealed that the patient was comatose and had right hemiparesis. CT scan showed bilateral hemorrhage of the basal ganglia and subarachnoid hemorrhage in the perimesencephalic cistern. MRI showed high signal intensity areas in the bilateral basal ganglia, perimesencephalic cistern, cerebral white matter and corpus callosum. The patient was diagnosed as having diffuse axonal injury coinciding with bilateral hemorrhage of the basal ganglia. Stereotactic aspiration for the hematoma of the left basal ganglia was carried out. Case #2, a 75-year-old male was admitted immediately after falling from the roof of his house. Neurological examination revealed no neurological deficit except for headache and nausea. CT scan on the day of injury revealed no abnormality. But CT scan 12 hours following the injury showed bilateral hemorrhage of the basal ganglia. Blood pressure of the patient was within normal range and he was diagnosed as having traumatic bilateral intracerebral hematoma. Conservative treatment was carried out and the patient was discharged 7 days after injury with no neurological deficit. The mechanism of traumatic hemorrhage of the basal ganglia has not been clear. In case #1, diffuse axonal injury (DAI) may have played an important role in the bilateral hemorrhage. But in case #2, non-DAI factor such as vasoparalysis syndrome may have existed.(ABSTRACT TRUNCATED AT 250 WORDS)
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