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164396 Pathology

A 50-year-old woman develops a sudden, severe headache and is taken to the emergency department. On examination, she has nuchal rigidity. Her blood pressure is 115/83 mm Hg. A lumbar puncture is done; the CSF shows numerous RBCs, no neutrophils, a few mononuclear cells, and a normal glucose level. The Gram stain result is negative. CT imaging shows subarachnoid hemorrhage at the base of the brain. Which of the following vascular events has most likely occurred in this woman?

ABleeding from cerebral amyloid angiopathy
BHematoma formation from arteriolosclerosis
CMiddle cerebral artery thromboembolism
DRupture of an intracranial berry aneurysm
Pathology
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