Purpose: In this study, we aimed to evaluate the computed tomography (CT) findings of Fasciola hepatica infestations on initial and follow-up imagings after treatment, and also to describe the role of CT during diagnosis.
Methods: In this retrospective study, patients with a diagnosis of fascioliasis by clinical and laboratory examination who underwent initial and follow-up contrast-enhanced abdominal CT scans after treatment (a single oral dose of 10mg/kg Triclabendazole) were included. The CT scans were evaluated regarding liver and spleen sizes, portal and splenic vein diameters, involved hepatic segment numbers and involvement patterns, the presence of focal perihepatic hyperdensity, gallbladder wall thickening, dilatation of the intrahepatic biliary tract, periportal-right subdiaphragmatic lymphadenopathy, hepatic subcapsular and intra-abdominal bleeding, and perihepatic/intraabdominal free fluid. Initial (pre-treatment) and post-treatment CT scans (average 25 months after the treatment) were compared with for these features.
Results: A total of 36 patients with a mean age of 39.28±14.64 [15-83] years, were included in this study. After treatment, marked improvement in liver parenchymal involvement, biliary system findings, hepatomegaly-splenomegaly, periportal-peridiaphragmatic lymphadenopathy, and hepatic subcapsular hematoma were detected and focal perihepatic hyperdensity, free intraperitoneal fluid disappeared.
Conclusion: Contrast-enhanced abdominal CT can be used in the diagnosis and post-treatment follow-up of fascioliasis. Awareness of intrahepatic/extrahepatic lesions and all the complications of fascioliasis can greatly aid the diagnosis and also evaluation of the response to treatment.
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