Differential diagnosis for pyogenic liver abscess: Infectious etiologies predominate. Most are pyogenic (bacterial). Amebic (Entamoeba histolytica) and hydatid cyst (Echinococcus) important. Infectious Bacterial • Pyogenic Liver Abscess • Tuberculosis • Melioidosis (Burkholderia • Bartonella Fungal • Hepatosplenic Candidiasis • Endemic Fungi Parasite/Protozoa • Amebic Liver Abscess • Hepatic Hydatid Cyst (Echinococcus) • Fasciola (liver fluke) Non-lnfectious • Malignancy • Hepatocellular Carcinoma • Metastasis • Simple Cyst • Hemangioma • Biloma Jonathan Ryder, MD @JonathanRyderMD #pyogenic #liver #abscess #hepatic #hepatology #Differential #diagnosis