Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Magnetic resonance imaging (MRI). (a) (b) Edematous changes of the lower brainstem are shown on axial and sagittal T2-weighted images. Abnormal flow voids in the subdural space are also seen (arrowheads). (c) A follow-up MRI study shows the resolution of brainstem congestion, while an infarction was observed to have developed at the dorsal medulla oblongata (arrowhead).
