Liver Abscess - Differential Diagnosis Pyogenic: • Hepatobiliary • Colonic • Bacteremia Entamoeba histolytica: • Fecal/oral • Colitis non-current • Stool O+P, PCR, serology • Anchovy paste aspirate • Metronidazole followed by paromomycin Echinococcus: • Intermediate host=sheep, definitive host=dogs • South America (Peru), Asia, Africa • Asymptomatic; anaphylaxis if rupture • MRI, US, serology • PAIR + albendazole ID Chalk Talks by Dr. Darcy Wooten @Darcy_ID_doc #Liver #Abscess #Differential #Diagnosis