digestive system disorder intestinal polyposis syndrome hyperplastic polyposis syndrome https://github.com/monarch-initiative/mondo/issues/6743 https://www.malacards.org/card/hyperplastic_polyposis_syndrome Orphanet:157798 serrated polyposis MEDGEN:1645454 Hyperplastic polyposis syndrome is a rare, genetic intestinal disease characterized by the presence of multiple (usually large) hyperplastic/serrated colorectal polyps, usually with a pancolonic distribution. Histology reveals hyperplastic polyps, sessile serrated adenomas (most common), traditional serrated adenomas or mixed polyps. It is associated with an increased personal and familial (first-degree relatives) risk of colorectal cancer. NCIT:C165469 MONDO:0015524 UMLS:C4296896 SCTID:763536006 icd11.foundation:1344352020 GARD:0016982