Extensive subependymal nodules line the walls of the lateral ventricles. These nodules follows gray matter signal intensity on all sequences and appearance is typical of periventricular nodular heterotopia.
Background of semi-confluent periventricular and external capsule white matter hyperintensities consistent with microangiopathy. Incidental finding of a posterior fossa arachnoid cyst with marginal regional mass effect. Partial empty sella.