Hepatic hydatid cyst compressing the left portal vein

Case contributed by Ammar Haouimi
Diagnosis almost certain


Right upper abdominal pain in a patient from a rural area

Patient Data

Age: 50 years
Gender: Male

There is a well-defined unilocular hypoechoic cystic lesion with a few internal echoes. It is located in segments I and VIII of the liver. It has a thick but regular wall. 


The cystic lesion is well-defined with thick and regular wall. No peripheral enhancement following IV contrast. There is subtle dilatation of the intrahepatic biliary duct. There is also compression of the left portal vein and hypoperfusion of the left hepatic lobe on the portal venous phase which equilibrates on delayed images.


Case Discussion

Case of hepatic hydatid cyst stage CE1 (WHO classification) with a perfusion defect of the left liver due to an extrisic left portal vein compression.

Serological tests for hydatid disease were positive.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.