Encephalopathy, Progressive, Early-Onset, with Brain Atrophy and Spasticity, is also known as early-onset progressive encephalopathy-hearing loss-pons hypoplasia-brain atrophy syndrome. An important gene associated with Encephalopathy, Progressive, Early-Onset, with Brain Atrophy and Spasticity is TRAPPC12 (Trafficking Protein Particle Complex Subunit 12). Affiliated tissues include pons and brain, and related phenotypes are seizure and spasticity