Ultrasound and CT changes of liver parenchyma in acute schistosomiasis.

Acute schistosomiasis in travellers to endemic regions often remains unrecognized. Early diagnosis is important to avoid progression to chronic disease. Diagnosis is based on clinical, epidemiological and laboratory data. The role of imaging techniques as diagnostic tools remains to be established in acute clinical schistosomiasis. We describe hypodense nodules in the liver on ultrasound and CT scanning in a patient with acute schistosomiasis (Katayama syndrome). To our knowledge this is the first description of nodular hepatic lesions in acute schistosomiasis.