LEFT
FRONTAL HEMORRHAGIC CONTUSION. RIGHT TRAUMATIC SUBARACHNOID HEMORRHAGE
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The single
arrow head points to an area of hemorrhagic frontal contusion.
The arrow points to acute blood interdigitating within the sulci
of the occipito-parietal region. This is traumatic subarachnoid
hemorrhage. Nontraumatic subarachnoid hemorrhage should always
be considered to be secondary to a ruptured aneurysm or hemorrhage
from an A-V (arteriovenous) malformation and necessitates an angiogram
for confirmation.