Incidental giardiasis in a transduodenal fine‐needle aspiration for suspected hilar liver mass

Giardia duodenalis in common bile duct brushings

“…Other tests include nucleic acid amplification or antigen detection test. Rarely G. duodenalis may be detected in CBD brushings 2 by possible contamination from duodenal contents during endoscopic retrograde cholangiopancreatography. Treatment includes antimicrobial therapy and supportive care.…”