A 25-year-old man with a long history of temporal lobe epilepsy developed r
ight occipital lobe seizures and a progressive right homonymous hemianopia.
MRI showed diffuse enhancement of the left temporoparieto-occipital white
matter and cortical thickening of the left medial temporal lobe. The resect
ed temporal lobe revealed cortical dysplasia and angiodysplasia with foci o
f more recent ischemic necrosis and chronic inflammation as an explanation
for the clinical deterioration.