Inviting InnovationsIn 2005 Naidu et al [2] characterized an infantile neurodegenerative syndrome with pictures of acute clinical deterioration associated with asymmetric patchy leukoencephalopathy in neuroimaging studies along with cavities and vascular permeability, found initially on corpus callosum and centrum semiovale, and developing cystic degeneration; This entity was called Progressive Cavitational Leukoencephalopathy