Presentation
Right upper abdominal pain.
Patient Data
Age: 35 years
Gender: Male
From the case:
Hepatic hydatid cyst - stage CE4
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A well-defined rounded hepatic mass in segment 8, heterogeneous, showing hypo and hyperechoic echotexture (ball of wool sign), with no color flow in the duplex study.
Case Discussion
This case represents a hepatic hydatid cyst with ultrasound ''serpent sign'', classified as stage CE 4 according to the 2001 WHO classification of hepatic hydatid cysts.