Familial adenomatous polyposis overview: Difference between revisions
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Familial adenomatous polyposis may be caused by [[mutation]] in ''[[APC]]'' or ''[[MUTYH]]'' genes. | Familial adenomatous polyposis may be caused by [[mutation]] in ''[[APC]]'' or ''[[MUTYH]]'' genes. | ||
==Differentiating | ==Differentiating Familial Adenomatous Polyposis from Other Diseases== | ||
Familial adenomatous polyposis must be differentiated from other diseases that cause multiple [[Polyp|polyps]], such as [[Peutz-Jeghers syndrome|Peutz–Jeghers syndrome]], juvenile polyposis syndrome, [[Cowden syndrome]], [[Carney syndrome]], and [[Hereditary nonpolyposis colorectal cancer|hereditary non–polyposis colon cancer]] ([[Hereditary nonpolyposis colorectal cancer|Lynch syndrome]]). | |||
==Epidemiology and Demographics== | ==Epidemiology and Demographics== | ||
Revision as of 02:05, 1 February 2018
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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
Historical Perspective
Familial adenomatous polyposis was first described in 1726 by Menzelio. After 150 years, in 1882, familial nature of the multiple colonic polyposis was reported. Inheritancepredisposition was identified in 1925. Gardner's syndrome was first described in 1950 by Gardner and Stephens. Bussey described clinical features and natural history of familial adenomatous polyposis in 1975. In 1986, genetic abnormality was discovered by Herrera. In 1991, APC gene defect was identified as one of the causes of familial adenomatous polyposis.
Classification
Familial adenomatous polyposis (FAP) may be classified according to the affected gene into two subtypes including FAP gene and MYH gene associated familial adenomatous polyposis. Familial adenomatous polyposis may be classified according to severity into three subtypes of profuse, intermediate, and attenuated. Familial adenomatous polyposis has less severe variants, including gardner's syndrome and turcot syndrome.
Pathophysiology
Causes
Familial adenomatous polyposis may be caused by mutation in APC or MUTYH genes.
Differentiating Familial Adenomatous Polyposis from Other Diseases
Familial adenomatous polyposis must be differentiated from other diseases that cause multiple polyps, such as Peutz–Jeghers syndrome, juvenile polyposis syndrome, Cowden syndrome, Carney syndrome, and hereditary non–polyposis colon cancer (Lynch syndrome).