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Juvenile colonic polyposis

MedGen UID:
868607
•Concept ID:
C4023006
•
Disease or Syndrome
HPO: HP:0012198

Definition

The presence of more than 5 juvenile polyps of the colon. The term juvenile polyps refer to a special histopathology and not the age of onset as the polyp might be diagnosed at all ages. The juvenile polyp has a spherical appearance and is microscopically characterized by overgrowth of an oedematous lamina propria with inflammatory cells and cystic glands. [from HPO]

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVJuvenile colonic polyposis

Conditions with this feature

Polyposis syndrome, hereditary mixed, 2
MedGen UID:
350500
•Concept ID:
C1864730
•
Disease or Syndrome
Hereditary mixed polyposis syndrome-2 (HMPS2) is characterized by colonic polyps of mixed hyperplastic, adenomatous, and occasional juvenile types. Polyposis eventually progresses to colorectal cancer (Cao et al., 2006). For a discussion of genetic heterogeneity of HMPS, see HMPS1 (601228).
See: Condition Record
Polyposis syndrome, hereditary mixed, 2

Professional guidelines

PubMed

Updates in the diagnosis and management of non-ampullary small-bowel polyposis.
Lucaciu L, Yano T, Saurin JC
Best Pract Res Clin Gastroenterol 2023 Jun-Aug;64-65:101852. Epub 2023 Jul 22 doi: 10.1016/j.bpg.2023.101852. PMID: 37652652
Diagnosis and Management of Cancer Risk in the Gastrointestinal Hamartomatous Polyposis Syndromes: Recommendations From the US Multi-Society Task Force on Colorectal Cancer.
Boland CR, Idos GE, Durno C, Giardiello FM, Anderson JC, Burke CA, Dominitz JA, Gross S, Gupta S, Jacobson BC, Patel SG, Shaukat A, Syngal S, Robertson DJ
Gastroenterology 2022 Jun;162(7):2063-2085. Epub 2022 Apr 26 doi: 10.1053/j.gastro.2022.02.021. PMID: 35487791
Hereditary gastrointestinal carcinomas and their precursors: An algorithm for genetic testing.
Spoto CPE, Gullo I, Carneiro F, Montgomery EA, Brosens LAA
Semin Diagn Pathol 2018 May;35(3):170-183. Epub 2018 Jan 31 doi: 10.1053/j.semdp.2018.01.004. PMID: 29397239

Recent clinical studies

Diagnosis

Juvenile colonic polyposis with villous adenoma and retroperitoneal fibrosis: Report of a case.
Rabin ER, Patel T, Chen FH, Gunalp S, Brown HW
Dis Colon Rectum 1979 Jan-Feb;22(1):63-7. doi: 10.1007/BF02586762. PMID: 421653

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