<prompt> What isare not a features of the Encephalotrigeminal syndrome:Rail track appearance on CT scanHemiatrophy of the brainConvulsionEmpty sella  <response>: Sturge - Weber Syndrome Encephalotrigeminal Syndrome - Large unilateral cutaneous angioma po - wine stain - Focal seizures typically occurs opposite to the side of lesion - Cerebral angiomas lead to coical atrophy - Angiomas are visible radiologically as tram - track or rail track calcification mainly in occipital region 