MONDO_0044300 (familial adenomatous polyposis 4) is an autosomal recessive tumor predisposition syndrome characterized by the development of multiple colonic adenomas in adulthood, often with progression to colorectal cancer. Proliferative lesions in other tissues may also occur. Also known as: FAP4, MSH3-related AFAP, MSH3-related attenuated FAP, MSH3-related attenuated familial adenomatous polyposis, MSH3-related attenuated familial polyposis coli, familial adenomatous polyposis type 4.