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.
This disease is characterized by multiple maculopapular lesions that can form brownish plaques anywhere in the anogenital region. It is a rare, highly contagious sexually-transmitted infection associated with HPV-16 or other less frequent HPV subtype.