Encephalopathy, Progressive, Early-Onset, with Brain Atrophy and Thin Corpus Callosum, also known as early-onset progressive diffuse brain atrophy-microcephaly-muscle weakness-optic atrophy syndrome, is related to corneal dystrophy, thiel-behnke type and tubulinopathy. An important gene associated with Encephalopathy, Progressive, Early-Onset, with Brain Atrophy and Thin Corpus Callosum is TBCD (Tubulin Folding Cofactor D). Affiliated tissues include brain and eye, and related phenotypes are spasticity and muscle weakness