Hepatic hydatid cyst - water lily sign

Case contributed by Abdulmajid Bawazeer
Diagnosis almost certain

Presentation

Incidental finding in a patient with right loin pain caused by the right ureteric stone.

Patient Data

Age: 30 years
Gender: Male
ultrasound

Well defined cystic lesion ( post acoustic enhancement ) with irregular folded membrane and floating echogenic debris in the left liver lobe.

Case Discussion

Sonography shows thin echogenic floating membranes in a well‐defined cystic hepatic lesion, representing a separated endocyst Water lily sign.
Features are in keeping with type CE3 A (2001 WHO classification of hepatic hydatid cysts).

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