Carbon monoxide poisoning
Unconscious state after exposure to heating gas in a closed environment.
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Hypoattenuation noted involving bilateral globus pallidus and periventricular white matter.
No evidence of intracranial hemorrhage.
Carbon monoxide (CO) poisoning results in anoxic-ischemic encephalopathy which is seen on CT as low attenuation areas in the globus pallidus and in cerebral white matter.