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 syndrome characterized by extraintestinal manifestation of familial adenomatous polyposis that has_material_basis_in in some cases by extreme 3' mutation in APC on 5q22.2. (DO)
Synonyms:
exact_synonym:
FIF; desmoid tumor caused by somatic mutation; familial infiltrative fibromatosis