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Fig 2. A, Sagittal T2-weighted image showing no visible changes in the brain stem tissue. The brain stem is partially dislocated following traumatic impact because of compression by the fractured clivus.
B, Sagittal FA map showing an area of higher anisotropy at the level of the transition between the pons and medulla, likely due to hemorrhage at the pontomedullary junction, but noise contributions cannot be ruled out.
C, Macroscopy: sagittal autopsy specimen showing punctate hemorrhagic changes and partially disrupted brain stem tissue at the level of the transition between pons and medulla
D, Microscopy: histologic section of brain stem fiber tract demonstrating acute hemorrhage and edema (paraffin; H&E; scale bar = 60 µm). Axonal swellings indicating a prolonged interval between the traumatic lesion and death are absent due to the immediate death of the patient.
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