Progressive Essential Tremor-Speech Impairment-Facial Dysmorphism-Intellectual Disability-Abnormal Behavior Syndrome

A rare genetic syndromic intellectual disability characterized by global developmental delay, moderate to severe intellectual disability, motor and language impairment, behavioral abnormalities (with mood instability, aggression, and self-mutilation), and progressive hand tremor. Facial dysmorphism includes narrow palpebral fissures, large ears, long philtrum, and prominent chin.