Monarch Disease Ontology id MONDO_0019188 (Rubinstein-Taybi syndrome) is a rare malformation syndrome characterized by congenital anomalies (microcephaly, specific facial characteristics, broad thumbs and halluces and postnatal growth retardation), short stature, intellectual disability and behavioral characteristics. Also known as: Broad thumb-hallux syndrome, Broad thumbs-halluces syndrome, Rubinstein syndrome, Rubinstein-Taybi Syndrome, proximal chromosome 16p13.3 deletion syndrome.