RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
An overgrowth disorder characterized by increased somatic parameters apparent from birth and associated with variable intellectual disability. Affected individuals have dysmorphic facial features, advanced bone age, and skeletal abnormalities, including flaring of the metaphyses of the long bones, large hands with long fingers and camptodactyly, and often scoliosis or cervical spine anomalies. (OMIM)