Nontraumatic subarachnoid hemorrhage
Sudden onset severe headache with nausea and vomiting. No neurological deficits.
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Small volume right superior frontal lobe subarachnoid hemorrhage. No intra-ventricular or parenchymal hemorrhage present. No evidence of mass effect of midline shift.
This is a case of non-traumatic spontaneous subarachnoid hemorrhage. There was no CTA evidence of cerebral aneurysm. Vasculitic and coagulation screens negative. Patient was not on blood thinners. Cause remains uncertain. Patient improved with conservative management with no further episodes.