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Familial occurrence of lymphocytic colitis
1Department of Medicine (Gastroenterology) University of British Columbia Hospital, Vancouver, Canada.
Summary
Familial lymphocytic colitis occurred in a mother and her two daughters. The children were diagnosed younger and had more severe disease, suggesting genetic anticipation or a shared environmental factor.
Area of Science:
- Gastroenterology
- Genetics
- Epidemiology
Background:
- Lymphocytic colitis is an inflammatory bowel disease.
- Familial clustering of inflammatory bowel diseases is recognized.
Observation:
- A case of familial lymphocytic colitis in a female parent and her two female children is described.
- No other genetic disorders, including celiac disease, were identified.
- The children were diagnosed over 20 years earlier than the parent and exhibited greater disease severity.
Findings:
- The pattern of earlier age of onset and increased severity in successive generations suggests genetic anticipation.
- Alternatively, a shared environmental exposure within the family cohort may contribute to disease development.
- This familial occurrence provides insights into the potential genetic and environmental factors in lymphocytic colitis.
Implications:
- Understanding familial patterns can aid in early diagnosis and management of lymphocytic colitis.
- Further research into genetic anticipation and environmental triggers is warranted for inflammatory bowel diseases.
- This case highlights the importance of considering family history in the evaluation of lymphocytic colitis.