fig 2.

A, Axial T2-weighted image obtained at the time of the second hospitalization (2 days after the onset of symptoms).

B, Diffusion-weighted image shows an extensive hyperintense lesion involving the cortex and subcortical white matter in the left occipital lobe.

C, Corresponding ADC map reveals no obvious abnormalities.

D, ^99mTc-HMPAO SPECT scan obtained on day 3 shows a remarkable increase in tracer accumulation in the left occipital lobe. Follow-up images obtained 2 weeks later (not shown) indicated the resolution of the left occipital abnormality with residual localized atrophy.