Endoscopic ultrasound diagnosis of hydatid membranes in nonobstructive biliary system

Abstract

Biliary communication in hepatic hydatid cyst is reported in 1–20% of patients. These patients present with fever (70–90%), right upper quadrant pain (80%), cholangitis (20–37%), acute pancreatitis (rare), liver abscess, and septicemia. Diagnosis of biliary rupture is on abdominal ultrasound, computerized tomography, and/or magnetic resonance imaging demonstration of hydatid membranes. We report a case of rupture hydatid cyst where diagnosis was on endosonographic findings and the patient had normal caliber common bile duct.

Keywords

• biliary communication
• endoscopic ultrasound
• hydatid membranes