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:
progressive pseudorheumatoid arthropathy of childhood
A osteochondrodysplasia characterized by autosomal recessive inheritance with typical onset around 3 years of age, progressive severe degenerative joint disease, platyspondyly, epiphyseal enlargement but absence of inflammatory joint disease that has_material_basis_in homozygous or compound heterozygous mutation in the CHST3 gene on chromosome 10q22. (DO)