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Heritable Gastrointestinal Cancer Syndromes
1Division of Gastroenterology, Department of Internal Medicine, University of Michigan Health System, 2150A Cancer Center, Ann Arbor, MI 48109, USA.
Gastroenterology Clinics of North America
|August 23, 2016
Summary
Approximately 5% of gastrointestinal cancers stem from inherited gene mutations, not sporadic events. Identifying these hereditary cancer syndromes is crucial for patient and family management.
Area of Science:
- Gastroenterology
- Oncology
- Genetics
Background:
- Most gastrointestinal cancers arise from sporadic genetic changes.
- A small but significant percentage (around 5%) are hereditary, caused by germline mutations.
- The number of known cancer predisposition genes is continually expanding.
Purpose of the Study:
- To summarize the diagnosis and management of hereditary cancer syndromes impacting the gastrointestinal tract.
- To highlight the importance of identifying individuals at risk for these inherited conditions.
Main Methods:
- Utilizing tumor phenotypes and family history to identify at-risk individuals.
- Employing systematic approaches that integrate family history with molecular tumor and polyp characterization.
- Reviewing current literature on hereditary gastrointestinal cancer syndromes.
Main Results:
- Germline mutations are responsible for a subset of gastrointestinal cancers.
- Family history and specific tumor characteristics are key indicators of hereditary cancer syndromes.
- Molecular profiling aids in pinpointing genetic predispositions.
Conclusions:
- Early identification of hereditary cancer syndromes is vital for effective patient and family management.
- Integrated diagnostic strategies combining clinical and molecular data improve the detection of genetic predispositions.
- Understanding these syndromes impacts clinical decision-making and patient outcomes.
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