Genetic Disorder Reference Sheet: MUTYH-Associated Polyposis

MUTYH-associated polyposis (MAP) is an autosomal recessive hereditary cancer syndrome. It’s most commonly seen in people of northern European ancestry, where an estimated 1 in 20,000–40,000 have MAP (two pathogenic variants on opposite chromosomes) and 1%–2% have one MUTYH pathogenic variant.