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.
Porokeratosis is a rare skin disorder characterized by one or more annular plaques with a surrounding raised horny border that spreads centrifugally. Variants of porokeratosis have been described that differ in morphologic shapes, distribution, and clinical course. However, several families with expression of more than one variant of porokeratosis among members, and individuals expressing more than one variant, have been reported, suggesting that the distinctions among these variants may be artificial. Multiple types of porokeratosis (POROK3) are caused by heterozygous mutation in the MVK gene on chromosome 12q24. (OMIM)
ClinVar Annotator: match by term: POROKERATOSIS 3, MULTIPLE TYPES | ClinVar Annotator: match by term: POROKERATOSIS, DISSEMINATED SUPERFICIAL ACTINIC, 1
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: POROKERATOSIS 3, MULTIPLE TYPES | ClinVar Annotator: match by term: POROKERATOSIS, DISSEMINATED SUPERFICIAL ACTINIC, 1