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Case 21: 39-year-old woman with SAH.
A, DSA image reveals a 1-mm aneurysmal sac (arrow) at the superior border of the right side bifurcation area of the MCA.
B, Magnified MIP MR angiogram shows superior direction of the small aneurysmal sac (arrow) at the same site.
C, Magnified MPR image shows a small projection of vessel lumen (arrow) at the same site of the right bifurcation of the MCA.
