A rare multiple congenital anomalies syndrome characterized by greater height, mild to moderate intellectual disability and distinctive facial appearance like round face, heavy, horizontal eyebrows and narrow palpebral fissures. The disease is Monarch Disease Ontology term MONDO_0014382 (Tatton-Brown-Rahman overgrowth syndrome). Also known as: DNMT3A-related overgrowth syndrome, Tatton Brown Rahman Syndrome, tall stature-intellectual disability-facial dysmorphism syndrome.