FIG 1. MR imaging revealing no abnormalities in the occipital lobe, no hyperintensities on T2-weighted or FLAIR sequences, no infarction with reduced diffusion, and no vessel occlusion.

A, Axial FLAIR image.

B, Time-of-flight angiography (maximum intensity projection).

C, Axial T2-weighted image.

D, Diffusion-weighted image (b = 1000).