CTICasesPulmonary and Hepatic Echinococcus Granulosus (Hydatid Disease)
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Imaging findings
A 37-year-old Romanian sheep farmer presents with cavitary lung lesions exhibiting bizarre internal architecture, and more solid lesions containing a liquid component. Additionally, large and smaller adjacent lesions are noted in the liver. Follow-up imaging two years after treatment shows the lesions are still present but appear more quiescent, shrunken, and solid, without the prior cavitation.
Key takeaways
Echinococcus granulosus (hydatid disease) is a parasitic infection often seen in sheep farmers, with humans acting as incidental hosts through fecal-oral contamination from definitive hosts like dogs. Lesions commonly manifest in the lungs and liver. Biopsy or surgical resection is generally avoided due to the risk of anaphylactic shock from spillage and local contamination. Treatment often involves prolonged medical therapy, which may reduce lesion size but not eliminate them. This is distinct from E. multilocularis, which involves foxes and rodents as hosts.
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