scholarly journals Genetic alteration of colorectal adenoma‐carcinoma sequence among gastric adenocarcinoma and dysplastic lesions in a patient with attenuated familial adenomatous polyposis

2020 ◽  
Vol 8 (9) ◽  
Author(s):  
Hiroki Tanabe ◽  
Kentaro Moriichi ◽  
Keitaro Takahashi ◽  
Yusuke Ono ◽  
Yu Kobayashi ◽  
...  
Keyword(s):  
Familial Adenomatous Polyposis ◽  
Gastric Adenocarcinoma ◽  
Colorectal Adenoma ◽  
Genetic Alteration ◽  
Adenomatous Polyposis ◽  
Attenuated Familial Adenomatous Polyposis

scholarly journals American Founder Mutation for Attenuated Familial Adenomatous Polyposis

2008 ◽  
Vol 6 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Deborah W. Neklason ◽  
Jeffery Stevens ◽  
Kenneth M. Boucher ◽  
Richard A. Kerber ◽  
Nori Matsunami ◽  
...  
Keyword(s):  
Familial Adenomatous Polyposis ◽  
Founder Mutation ◽  
Adenomatous Polyposis ◽  
Attenuated Familial Adenomatous Polyposis ◽  
American Founder

What's New in Hereditary Colorectal Cancer?

2005 ◽  
Vol 129 (11) ◽  
pp. 1380-1384 ◽  
Author(s):  
Jeremy R. Jass
Keyword(s):  
Colorectal Cancer ◽  
Familial Adenomatous Polyposis ◽  
Hereditary Nonpolyposis Colorectal Cancer ◽  
Practical Significance ◽  
Adenomatous Polyposis ◽  
Repair Gene ◽  
Attenuated Familial Adenomatous Polyposis ◽  
Dna Repair Gene ◽  
Hereditary Nonpolyposis ◽  
Revised Bethesda Guidelines

Abstract Precancerous polyposes other than classic familial adenomatous polyposis and the condition hereditary nonpolyposis colorectal cancer, or Lynch syndrome, continue to present major diagnostic challenges for the anatomic pathologist. This editorial highlights the practical significance of novel insights and clinical guidelines in the recent literature, as well as in 4 contributions to this edition of the Archives of Pathology & Laboratory Medicine. The first section will address attenuated familial adenomatous polyposis and a newly recognized type of autosomal-recessive adenomatous polyposis associated with the DNA repair gene MYH. The remainder of the editorial discusses the role of the revised Bethesda guidelines in the diagnosis of hereditary nonpolyposis colorectal cancer and concludes with the recently identified serrated pathway syndrome.

scholarly journals Attenuated familial adenomatous polyposis (AFAP) in a patient associated with a novel mutation in APC

2019 ◽  
Vol 12 (11) ◽  
pp. e231232
Author(s):  
Vivek Sant ◽  
Elsa Reich ◽  
Lauren Khanna ◽  
Wenqing Cao ◽  
Susan Kornacki ◽  
...  
Keyword(s):  
Familial Adenomatous Polyposis ◽  
Novel Mutation ◽  
Binding Protein ◽  
Tumour Suppressor ◽  
Colon Polyps ◽  
Adenomatous Polyposis ◽  
Attenuated Familial Adenomatous Polyposis ◽  
Protein Inactivation ◽  
Exon 9 ◽  
Apc Mutation

Familial adenomatous polyposis (FAP) is an autosomal dominant syndrome associated with mutation in the adenomatous polyposis coli (APC) gene, a tumour suppressor located on chromosome 5q21. Attenuated familial adenomatous polyposis (AFAP) is a variant associated with fewer and later onset of colon polyps. AFAP-associated APC mutations have largely been found before codon 157, in exon 9 or after codon 1595. We present the case of a 44-year-old man incidentally found to have numerous gastric polyps during bariatric surgery, with innumerable polyps in the remaining part of the stomach and the entire colon, with rectal sparing, consistent with AFAP phenotype. Genetic testing demonstrated the c.7682dup (p.Ser2562Lysfs*21) variant in exon 15 of APC. This represents a previously undescribed APC mutation. This mutation likely yields end-binding protein 1 and human disc large binding protein inactivation, causing cell cycle microtubule dysregulation and tumour suppressor inactivation. Through loss of these regulatory mechanisms, this mutation is associated with AFAP phenotype. The patient was treated surgically and is doing well.

Gastric Adenocarcinoma Arising from Fundic Gland Polyps in a Patient with Familial Adenomatous Polyposis Syndrome

2008 ◽  
Vol 74 (1) ◽  
pp. 79-83 ◽  
Author(s):  
Sean Garrean ◽  
Justin Hering ◽  
Abdul Saied ◽  
Jigna Jani ◽  
N. Joseph Espat
Keyword(s):  
Familial Adenomatous Polyposis ◽  
Gastric Adenocarcinoma ◽  
Intestinal Tract ◽  
Treatment Strategies ◽  
Colorectal Polyps ◽  
Fundic Gland ◽  
Adenomatous Polyposis ◽  
Disease Manifestation ◽  
Fundic Gland Polyps ◽  
Optimal Screening

Familial adenomatous polyposis (FAP) is a rare hereditary syndrome characterized by multiple colorectal polyps and early development of colorectal cancer. Although FAP uniformly involves the large bowel, it may also produce lesions in the stomach and upper intestinal tract. Fundic gland polyps are the most common gastric lesion in FAP. In the general population, these polyps are considered benign and have no malignant potential. However, in FAP patients, fundic gland polyps have been occasionally recognized as precursor lesions from which invasive cancer may develop. Herein, we present a case of gastric adenocarcinoma arising from fundic gland polyps in an FAP patient. We also review reported cases of gastric cancer in FAP and FAP variant patients in an effort to better understand the pathology, clinical course, and optimal screening and treatment strategies for this disease manifestation.

scholarly journals Attenuated familial adenomatous polyposis with desmoids caused by an APC mutation

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Tsuneo Ikenoue ◽  
Kiyoshi Yamaguchi ◽  
Mitsuhiro Komura ◽  
Seiya Imoto ◽  
Rui Yamaguchi ◽  
...  
Keyword(s):  
Familial Adenomatous Polyposis ◽  
Adenomatous Polyposis ◽  
Attenuated Familial Adenomatous Polyposis ◽  
Apc Mutation
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