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 dermatophytosis that results_in fungal skin infection located_in hand, has_material_basis_in Ascomycota fungi that belong to a group called dermatophytes and has_symptom itching, has_symptom burning, has_symptom cracking, and has_symptom scaling. (DO)