alexa Risk of malignancy in patients with celiac disease.
Gastroenterology

Gastroenterology

Journal of Gastrointestinal & Digestive System

Author(s): Green PH, Fleischauer AT, Bhagat G, Goyal R, Jabri B,

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Abstract PURPOSE: Studies from Europe have demonstrated an increased risk of malignancy, especially non-Hodgkin's lymphoma, in patients with celiac disease. However, there are no data on the risk for similar patients in the United States. Our aim was to estimate the risk of malignancy in a cohort of patients with celiac disease compared with the general U.S. population and to determine if a gluten-free diet is protective. METHODS: Patients with celiac disease seen between July 1981 and January 2000 at a referral center were included. Standardized morbidity ratios (SMRs) (ratio of observed to expected) and corresponding 95\% confidence intervals (CI) were calculated, using data from the National Cancer Institute's Surveillance, Epidemiology, and End Results Program. RESULTS: Forty-three (11\%) of 381 celiac disease patients had a diagnosis of cancer; 9 were after the diagnosis of celiac disease, 7 were simultaneous (during same month or admission), and 27 were before the diagnosis. The standardized morbidity ratio for all cancers combined was 1.5 (95\% CI: 0.3 to 7.5), with significantly increased values for small bowel cancer (SMR = 34; 95\% CI: 24 to 42), esophageal cancer (SMR = 12; 95\% CI: 6.5 to 21), non-Hodgkin's lymphoma (SMR = 9.1; 95\% CI: 4.7 to 13), and melanoma (SMR = 5.0; 95\% CI: 2.1 to 12). Following the diagnosis of celiac disease, patients were at increased risk of non-Hodgkin's lymphoma only (SMR = 6.2; 95\% CI: 2.9 to 14), despite adherence to a gluten-free diet. The non-Hodgkin's lymphoma included both T-cell and B-cell types and occurred in both gastrointestinal (n = 5) and extraintestinal sites (n = 4). CONCLUSION: In this cohort of patients with celiac disease, we observed increased risks of small intestinal adenocarcinoma, esophageal cancer, melanoma, and non-Hodgkin's lymphoma. The risk of non-Hodgkin's lymphoma persisted despite a gluten-free diet.
This article was published in Am J Med and referenced in Journal of Gastrointestinal & Digestive System

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