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 acute orbital inflammation that is characterized by painful orbital mass and has_symptom eyelid edema, has_symptom erythema, has_symptom chemiosis, has_symptom proptosis, has_symptom blurred vision, has_symptom headache, has_symptom fever and has_symptom double vision. (DO)