Hereditary or sporadic polyposis syndromes
Gianluca Basso1, Paolo Bianchi1, Alberto Malesci2
1Laboratory of Molecular Gastroenterology, Department of Gastroenterology, Humanitas Clinical and Research Center, Via Manzoni 56, 20089 Rozzano (Milan), Italy.
Best Practice & Research. Clinical Gastroenterology
|August 27, 2017
Summary
Polyposis syndromes, though rare, require accurate characterization for patient management. Genetic testing and Next Generation Sequencing are crucial for colorectal cancer prevention and identifying new clinical entities.
Area of Science:
- Gastroenterology
- Genetics
- Oncology
Background:
- Polyposis syndromes are rare, accounting for less than 1% of colorectal cancer cases.
- They can be inherited or sporadic, with unknown causes.
- Accurate characterization is vital for patient management, genetic testing, and colorectal cancer prevention.
Purpose of the Study:
- To review the classification (nosology) of polyposis syndromes.
- To explore the genetic determinants of polyposis.
- To discuss the impact of Next Generation Sequencing (NGS) on polyposis research and clinical practice.
Main Methods:
- Literature review of polyposis syndromes.
- Analysis of classification criteria based on polyp number, histology, and patient history.
- Examination of genetic testing advancements, including NGS.
Main Results:
- Polyposis classification relies on polyp characteristics and patient history.
- Genetic testing plays a key role in diagnosis, surveillance, and prevention strategies.
- NGS enables parallel testing of multiple genes, expanding the identification of predisposing genes.
Conclusions:
- Proper characterization of polyposis syndromes is essential for guiding genetic testing and personalized patient management.
- NGS technology is transforming the field by facilitating the discovery of new genetic links and clinical entities.
- Enhanced genetic understanding will improve colorectal cancer prevention and surveillance for affected families.
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