Purpose: The aim of this retrospective study was to analyze the sonographic features of hepatic lesions in patients with fascioliasis to help determine the utility of sonography in diagnosing this disorder in patients from areas in which Fasciola hepatica infestation is endemic.
Methods: Seven patients with acute-phase (hepatic) fascioliasis had been identified among a previously reported series of 37 patients with fascioliasis who had been evaluated sonographically at Donostia Hospital in San Sebastián (Guipúzcoa), Spain. The 4 men and 3 women ranged in age from 29 to 69 years (mean, 49 years). A history of ingestion of watercress had been confirmed in 6 of the patients.
Results: Sonographically, the hepatic lesions appeared as focal areas of increased echogenicity in the right lobe (2 cases), multiple nodular or irregular lesions of variable echogenicity, ranging from 5 to 25 mm in diameter, in both lobes (4 cases), and a single 6-cm complex mass in the right hepatic lobe (1 case). Therapy with dehydroemetine, praziquantel, or bithionol resulted in complete remission, although 2 patients required an additional treatment cycle. One patient also underwent surgery.
Conclusions: Sonography can be useful in the detection and follow-up of hepatic lesions in human fascioliasis and can facilitate the diagnosis of this condition, particularly in areas where it is endemic.
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