Familial adenomatous polyposis natural history, complications and prognosis
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2], Mohamad Alkateb, MBBCh [3]
Overview
Natural history
- Familial adenomatous polyposis is a rare disease that usually starts during teenage years.[1]
- Patients with familial adenomatous polyposis develop hundreds to thousands colon polyps since childhood.
- They might have upper gastrointestinal polyps. However, progression to malignancy is less than colon polyps.
Complications
Complications that can develop as a result of familial adenomatous polyposis are:[2][3]
- Colon cancer which has two different pathways:
- Molecular pathogenesis of sporadic colon cancer
![](/images/e/ee/Sporadic_Colon_Cancer3.jpg)
- Molecular pathogenesis of colitis-associated colon cancer
![](/images/a/a5/Colitis-associated_colon_cancer.jpg)
- Duodenal and ampullary cancer
- They are major causes of death after polypectomy
- End-viewing duodenoscopy and side-viewing duodenoscopy are conducted for surveillance.
Prognosis
- The prognosis of familial adenomatous polyposis is excellent with treatment.
- Without treatment, all patients with familial adenomatous polyposis develop colon cancer at age of 40-50.
References
- ↑ Kennedy, Raelene D.; Potter, D. Dean; Moir, Christopher R.; El-Youssef, Mounif (2014). "The natural history of familial adenomatous polyposis syndrome: A 24year review of a single center experience in screening, diagnosis, and outcomes". Journal of Pediatric Surgery. 49 (1): 82–86. doi:10.1016/j.jpedsurg.2013.09.033. ISSN 0022-3468.
- ↑ Iaquinto, Gaetano; Fornasarig, Mara; Quaia, Michele; Giardullo, Nicola; D'Onofrio, Vittorio; Iaquinto, Salvatore; Di Bella, Simone; Cannizzaro, Renato (2008). "Capsule endoscopy is useful and safe for small-bowel surveillance in familial adenomatous polyposis". Gastrointestinal Endoscopy. 67 (1): 61–67. doi:10.1016/j.gie.2007.07.048. ISSN 0016-5107.
- ↑ King, John E.; Dozois, Roger R.; Lindor, Noralane M.; Ahlquist, David A. (2000). "Care of Patients and Their Families With Familial Adenomatous Polyposis". Mayo Clinic Proceedings. 75 (1): 57–67. doi:10.4065/75.1.57. ISSN 0025-6196.