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A 28 year-old man developed the lightening onset of an explosive headache followed by nausea and vomiting.
Left Internal Carotid Angiogram. (Left) AP view; (Right) Lateral Oblique View. Note the large anterior communication artery aneurysm. Spontaneous subarachnoid hemorrhage is most often caused by a ruptured aneurysm. They usually present with sudden headache, nausea, and vomiting, often associated with signs of increased intracranial pressure. The anterior communicating artery is a common location for aneurysms.
Revised
05/01/06.
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School of Medicine.