PMC4678062_01
(a) First computed tomography of the head (01:25 am) and (b) follow-up computed tomography of the head (02:30 am).
CRIEM2015-646438.001.jpg
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fig1
She was found to have an extensive subarachnoid hemorrhage (Fisher grade 4), with breach in the fourth ventricle; see Figure 1.
Second computed tomography of the head (02:30 am) shows an aneurysm at the right carotid T cross, pan-cerebral diminished perfusion, and developing tonsillar herniation.
CRIEM2015-646438.002.jpg
PMC4678062_01_CRIEM2015-646438.002.jpg
fig2
This showed an extensive and progressive subarachnoid hemorrhage (now Fisher grade 4) with diminished perfusion during the arterial phase, collapsed ventricles, cerebral herniation, pan-cerebrally diminished perfusion, and a potential aneurysm at the carotid artery cross; see Figure 2.