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Case 1. Images of a 62-year-old female patient with headache.
A, T2-weighted MR image shows possible left middle cerebral artery aneurysm.
B, Digital subtraction angiogram confirms left middle cerebral artery aneurysm.
C, Immediately after endovascular embolization, aneurysmal flow in the center is still observed.
D, Follow-up angiogram obtained 6 months later shows complete obliteration of the aneurysm.
