scholarly journals Hereditary Diffuse Gastric Cancer: Multidisciplinary Case Report with Review of the Literature

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Rebecca Wilcox ◽  
Melody Perpich ◽  
Amy Noffsinger ◽  
Mitchell C. Posner ◽  
Kumarasen Cooper

Hereditary diffuse gastric cancer (HDGC) is a rare, inherited cancer syndrome with at least one fourth of HDGC patients having an autosomal dominantly inherited mutation of CDH1 (E-Cadherin). Penetrance is relatively high (70–80% lifetime risk for gastric cancer). It is important for pathologists to recognize the syndrome's phenotype in early gastric lesions: patchy intramucosal signet ring cells often associated with pagetoid spread. Due to the insidious nature of this lesion, surveillance is limited and currently prophylactic gastrectomy is an option chosen by many HDGC patients. We present a case report from a multidisciplinary team of authors with a review of the literature that includes the updated guidelines for CDH1 genetic testing.

1999 ◽  
Vol 14 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Parry J. Guilford ◽  
Justin B.W. Hopkins ◽  
William M. Grady ◽  
Sanford D. Markowitz ◽  
Joseph Willis ◽  
...  

2021 ◽  
pp. jmedgenet-2021-108226
Author(s):  
Giovanni Corso ◽  
Francesca Magnoni ◽  
Giulia Massari ◽  
Cristina Maria Trovato ◽  
Alessandra Margherita De Scalzi ◽  
...  

The objective of this study was to determining the frequency of different sub-types of pathogenic CDH1 germline mutations in healthy and asymptomatic individuals from families with the hereditary diffuse gastric cancer (HDGC) syndrome. Relevant literature dating from 1998 to 2019 was systematically searched for data on CDH1 germline mutations. The collected variants were classified according to their subtype into the following classes: missense, non-sense, splicing, insertions and deletions. The χ2 test was used to estimate if the difference observed between patients with gastric cancer (GC) and unaffected individuals was statistically significant. CDH1 genetic screening data were retrieved for 224 patients with GC and 289 healthy individuals. Among the subjects that had tested CDH1 positive, splicing mutations were found in 30.4% of the healthy individuals and in 15.2% of the patients with GC (p=0.0076). Missense mutations were also found to occur in healthy subjects with higher frequency (22.2%) than in GC-affected individuals (18.3%), but the difference was not significant in this case. In families meeting the clinical criteria for the HDGC syndrome, CDH1 splicing and missense germline mutations have been reported to occur with higher frequency in healthy subjects than in patients with cancer. This preliminary observation suggests that not all pathogenic CDH1 germline mutations confer the same risk of developing GC.


2017 ◽  
Vol 152 (5) ◽  
pp. S553-S554
Author(s):  
Tomer Adar ◽  
Devanshi Patel ◽  
John T. Mullen ◽  
Gregory Y. Lauwers ◽  
Daniel C. Chung

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Nastazja Dagny Pilonis ◽  
Marc Tischkowitz ◽  
Rebecca C. Fitzgerald ◽  
Massimiliano di Pietro

Hereditary diffuse gastric cancer (HDGC) is a cancer syndrome associated with a significant lifetime risk of diffuse gastric cancer (DGC), a malignancy characterized by late clinical presentation and poor prognosis, as well as lobular breast cancer. HDGC is linked to germline pathogenic variants in the E-cadherin gene ( CDH1) that are inherited in an autosomal dominant pattern; however, in many families with DGC clustering, no genetic cause has been identified. This review discusses key elements that allow risk assessment of potential inherited DGC susceptibility. We provide a practical overview of the recommendations for surveillance and treatment of individuals at risk and patients with early disease. The review also outlines future research avenues to improve our understanding of the genetic background and natural history of the disease, the endoscopic detection of early lesions, and the outcome of prophylactic surgery in young individuals. Expected final online publication date for the Annual Review of Medicine, Volume 72 is January 27, 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.


2019 ◽  
Vol 25 (23) ◽  
pp. 2878-2886 ◽  
Author(s):  
Shria Kumar ◽  
Jessica M Long ◽  
Gregory G Ginsberg ◽  
Bryson W Katona

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