Chronic Schistosoma mekongi in a traveler--a case report and review of the literature.

Travel-related schistosomiasis can be detected in patients without symptoms of acute or chronic infection. A case of Schistosoma mekongi acquired in an endemic area of Laos and discovered unexpectedly from colon biopsies taken 5 years after infection is presented here. A literature review of previous cases of S. mekongi infection specifically associated with travelers is then presented.