Abstract
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Describe the epidemiology, transmission pathways, and typical organ involvement of hydatid disease caused by Echinococcus granulosus.
Identify the characteristic sonographic and computed tomographic imaging features of hepatic hydatid cysts, including atypical splenic extension.
Explain the diagnostic challenges, differential considerations, and management implications of hepatic hydatid disease in non-endemic settings.
According to the article, hydatid disease is caused by infection with which organism? A. Echinococcus granulosus B. Taenia saginata C. Schistosoma mansoni D. Entamoeba histolytica
In hydatid disease, which organ is most commonly affected? A. Lungs B. Liver C. Spleen D. Kidneys
According to the article, which transmission route accounted for the largest proportion of cystic echinococcosis cases in the cited meta-analysis? A. Foodborne transmission B. Direct contact with dogs C. Contaminated water sources D. Environmental exposure
Which sonographic feature is considered pathognomonic for hepatic hydatid cysts? A. Thin-walled anechoic lesion B. Internal vascular flow on Doppler imaging C. Homogeneous internal echoes D. Presence of daughter cysts
According to the article, what is the primary role of computed tomography (CT) in evaluating hepatic hydatid disease? A. Initial screening in endemic regions B. Assessing complications and extrahepatic extension C. Determining serologic status D. Replacing sonography as the first-line modality
Why is biopsy or needle aspiration generally avoided in suspected hydatid cysts? A. Limited diagnostic yield B. High risk of fluid leakage and anaphylaxis C. Inability to visualize cyst walls D. Poor correlation with histopathology
According to the article, splenic extension of a hepatic hydatid cyst primarily affects clinical management by: A. Eliminating the need for surgery B. Reducing postoperative complication rates C. Allowing conservative medical therapy alone D. Increasing surgical complexity and risk
Footnotes
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