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FIG 5. Patient 5: 41-year-old woman with primary angiitis of the CNS and SAH over the left cerebral convexity.
A, CT scan shows SAH (arrows).
B, SE MR image (3000/100) corresponding to the CT scan in A fails to reveal any parenchymal abnormality; however, decreased T2 signal is present in the region corresponding to subarachnoid blood on the CT scan (arrows).
C, Coronal SE MR image (600/20) shows high signal intensity material that may be caused by hemorrhage over the left parietal lobe (arrow).
D, Angiogram shows multiple foci of dilatation and stenosis, predominantly in the left ACA distribution (arrowheads).
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