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.
Term:
chondrodysplasia with platyspondyly, distinctive brachydactyly, hydrocephaly, and microphthalmia
A syndrome characterized by chondrodysplasia associated with other features including intrauterine growth retardation, hydrocephaly, macrocephaly, frontal bossing, microphthalmia, small low-set ears, and short flat nose that has_material_basis_in heterozygous mutation in the HDAC6 gene on chromosome Xp11.23. (DO)