Adams-Oliver Syndrome (AOS) is a rare disorder characterized by the combination of congenital limb abnormalities and scalp defects, often accompanied by skull ossification defects. The disease is Adams-Oliver syndrome (MONDO_0007034, a Monarch Disease Ontology identifier). Also known as: AOS, Adams Oliver syndrome, congenital scalp defects with distal limb anomalies, congenital scalp defects with distal limb reduction anomalies, limb, scalp and skull defects.