A high T2 signal lesion involves the cortex of the posterior aspect of the right insula. The lesion incompletely suppresses on FLAIR with a peripheral bright rim persisting. It shows facilitated diffusion. There is no associated contrast enhancement. MR perfusion shows no increase in rCBV. There is no susceptibility blooming in the lesion. The hippocampal formations are normal and symmetrical. No other intracranial lesion. No hydrocephalus.