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Fig 4. Axial noncontrast CT. Ruptured anterior communicating artery (AcomA) aneurysm with Fisher IV subarachnoid hemorrhage (SAH). The SAH delineates the cisternal portion of both occulomotor nerves (white arrows), which appear as a "negative print" within the blood clot. In such cases, contact constraints between an aneurysm with the occulomotor nerve could readily be identified.
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