Vietnam veterans are concerned about exposure to liver f lukes during their service in the war and its possible link to cholangiocarcinoma. Some of them are being diagnosed with this rare tumor. No study has been done, to the authors’ knowledge, screening for liver f luke infection and its potential link to developing cholangiocarcinoma in Vietnam veterans. The authors performed a pilot study and found evidence of liver fluke infection in Vietnam veterans who had eaten raw freshwater fish.
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