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Strong evidence supports the association of GERD and adenocarcinoma of the esophagus; however, the risk of cancer in any given individual with GERD is low. Barrett esophagus appears to be a common precursor lesion to this cancer. Given the low absolute risk of cancer in those with GERD and the lack of demonstrated efficacy of endoscopic screening, insufficient evidence exists to endorse routine endoscopic screening of patients with chronic GERD symptoms.
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Shaheen et al. (2002) studied this question.
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