PMC3896286_01
A and B: Axial cerebral MRI in T1 and T2 weighted views, without contrast injection, showing bilateral subdural fluid collection and engorgement of superior sagittal sinus. C: Sagittal T2 weighted views, showing obliteration of prepontine cistern.
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A brain MRI with angio-sequences did not show cerebral thrombophlebitis, and was interpreted as normal (Figure 1).
A and B: After lumbar puncture, axial cerebral MRI T1 weighted views, with Gadolinum injection, showing bilateral subdural hematoma. C: Sagittal T2 weighted views, showing tonsilar descent simulating Chiari type I malformation.
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A second brain MRI showed bilateral subdural hematoma with tonsillar descent, simulating Chiari type I malformation (Figure 2).