| A rare genetic neurodevelopmental syndrome characterized by mild intellectual disability, developmental delay, dysmorphic facial features, growth and feeding problems, hypotonia, epilepsy, behavioral problems and a variety of congenital abnormalities. The disorder is either caused by mutations in Switch-insensitive 3 transcription regulator family member A (SIN3A; 15q24.2) or microdeletions, of various sizes, in the chromosome region 15q24 (15q24 microdeletion syndrome). The microdeletions often, but not always, encompass SIN3A. Transmission is autosomal dominant. |
