Alopecia-contractures-dwarfism-intellectual disability syndrome (ACD syndrome) is a form of ectodermal dysplasia syndrome characterized by a short stature of prenatal onset, alopecia, ichthyosis, photophobia, ectrodactyly, seizures, scoliosis, multiple contractures, fusions of various bones (particularly elbows, carpals, metacarpals, and spine), intellectual disability, and facial dysmorphism (microdolichocephaly, madarosis, large ears and long nose). ACD syndrome overlaps with ichthyosis follicularis-alopecia-photophobia syndrome. The disease is alopecia - contractures - dwarfism - intellectual disability syndrome (Monarch Disease Ontology term MONDO_0008754). Also known as: ACD-intellectual disability syndrome.