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We read with interest the two recent reports of lymphoma in patients with inflammatory bowel disease (IBD) (Farrell et al , Gut 2000; 47 :514–19 and Palli et al , Gastroenterology 2000; 119 :647–53). We believe the report from Farrell of four cases of lymphoma in a cohort of 782 patients (of whom 238 had received immunosuppression) considerably overestimates the relative risk of lymphoma in IBD patients. They calculate a relative risk of lymphoma as 31 for the whole cohort and 59 …
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Bebb et al. (2002) studied this question.
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