"After endoscopic sphincterotomy (ES), an elevated long-term risk of cholangiocarcinoma has been reported. However, large population-based studies testing this hypothesis are lacking," scientists in Huddinge, Sweden report (see also Sphincterotomy).
"The aim of this study was to evaluate the risk in a large population-based cohort. Data concerning all patients having had an inpatient endoscopic retrograde cholangiopancreatography (ERCP) were collected from the Swedish Hospital Discharge Register. Incident cases of malignancy were identified through linkage to the Swedish Cancer Registry. Patients with a diagnosis of malignancy before or within 2 years of the ERCP were …
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