Fig 4.

RCVS. A, Axial brain CT scan shows bilateral frontoparietal sulcal SAH (white arrowheads). B, Axial FLAIR image confirms the cSAH (white arrowheads). C, Lateral projection of 3D TOF MRA shows multiple arterial stenoses and dilations, mainly on the anterior cerebral artery branches (white arrowheads). D, Lateral projection of a right internal carotid angiogram shows multiple stenoses and dilations on both anterior cerebral and middle cerebral arteries (black arrowheads). Note that DSA, even if it showed more clearly the arterial abnormalities, did not change the previously suspected diagnosis. Follow-up MRA performed at 3 months demonstrated disappearance of the arterial lesions (not shown).