Fascioliasis: US, CT, and MRI findings with new observations |
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Authors: | A Kabaalio?lu M Çubuk U ?enol C Çevikol K Karaali A Apaydin T Sindel E Lüleci |
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Institution: | (1) Department of Radiology, Medical Faculty, Akdenız University, Antalya 07070, Turkey, TR |
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Abstract: | Background: The purpose of this study is to describe the ultrasonographic (US), computed tomographic (CT), and magnetic resonance imaging
(MRI) findings in fascioliasis and to emphasize the impact of radiology in diagnosis.
Methods: Radiologic findings in 23 consecutive patients with fascioliasis were prospectively recorded. All patients had at least one
US and CT examination, and 10 of them were studied by MRI. All diagnoses were confirmed by serologic methods. In the first
three cases, initial diagnosis was reached by microscopic demonstration of the parasites' eggs in bile obtained by US-guided
gallbladder aspiration.
Results: In the hepatic phase of fascioliasis, multiple, confluent, linear, tractlike, hypodense, nonenhancing hepatic lesions were
detected by CT. On US, the parasites could be clearly identified in the gallbladder or common bile duct as floating and nonshadowing
echogenic particles. MRI showed the lesions as hypo- or isointense on T1-weighted images and as hyperintense on T2-weighted
images.
Conclusions: CT findings in the hepatic phase and US findings in the biliary phase are characteristic of fascioliasis. Because clinical
and laboratory findings of fascioliasis may easily be confused with several diseases, radiologists should be familiar with
the specific radiologic findings of the disease to shorten the usual long-lasting diagnostic process.
Received: 15 December 1999/Accepted: 26 January 2000 |
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Keywords: | : Fascioliasis— Parasites— Liver diseases— Bile ducts diseases— Liver computed tomography— Liver ultrasonography |
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