CLN3 and juvenile neuronal ceroid lipofuscinosis: Ceroid lipofuscinosis type 3 (CLN3; MIM #204,200), also known as Spielmeyer–Vogt–Sjögren–Batten disease or shortly—Batten disease or juvenile neuronal ceroid lipofuscinosis (JNCL), is a rare lysosomal disorder inherited in an autosomal recessive trait (Mole and Cotman 2015).