Journal of the Anus, Rectum and Colon
Online ISSN : 2432-3853
ISSN-L : 2432-3853
Review Article
Comprehensive Analysis of Early-onset Colorectal Cancer: A Review
Kazunori TakadaKinichi HottaYoshihiro KishidaSayo ItoKenichiro ImaiHiroyuki Ono
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ジャーナル オープンアクセス

2023 年 7 巻 4 号 p. 241-249

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Early-onset colorectal cancer (CRC), which refers to CRC diagnosed in individuals below the age of 50 years, is a growing health concern that presents unique challenges in diagnosis, treatment, and long-term outcomes. Although approximately 70% of early-onset CRC cases are sporadic, with no apparent family history, approximately 25% have a familial component, and up to 20% may be associated with germline mutations, indicating a higher prevalence compared with the general population. Despite the progress in identifying the environmental, molecular, and genetic risk factors of early-onset CRC, the underlying causes for the global increase in its incidence remain unclear. This comprehensive review aims to provide a thorough analysis of early-onset CRC by examining the trends associated with its incidence, clinical and pathological characteristics, risk factors, molecular and genetic profiles, prognosis and screening strategies. By deepening our understanding of early-onset CRC, significant advances related to improving the outcomes and alleviating the burden of this disease on individuals, families, and healthcare systems can be achieved.

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© 2023 The Japan Society of Coloproctology

JARC is an Open Access journal distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. Anyone may download, reuse, copy, reprint, or distribute articles published in the Journal for non-profit purposes if they cite the original authors and source properly. If anyone remixes, transforms, or builds upon the material, you may not distribute the modified material.
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