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.
A syndrome that is characterized by hypopituitarism (mainly growth hormone deficiency), and/or postaxial polydactyly and has_material_basis_in autosomal dominant heterozygous mutation in the GLI2 gene on chromosome 2q14. Midline facial defects and developmental delay can also be seen. The condition shows incomplete penetrance and high variable expressivity. (DO)