Uncommon overall - usually occurs in right liver lobe
More<unk> es → more severe disease
History of camping is common
Endemic of Midwest
More<unk> es → more severe disease
Endemic of Midwest
Pyogenic (80%)
Most common cause
Associated with biliary tract obstruction (most common), cholangitis, diverticulitis, pancreatic<unk> , appendicitis and inflammatory bowel disease.
Possible arterial hematogenous seeding: sepsis, direct trauma or instrumentation
Usually polymicrobial
Amebic (10%)
E. histolytica most common
Usually not septic and sick, rarely needs drainage
Fungal (<10%), candidal
Hydatid cyst (echinococcosis)
Associated with sheep farmers
Most common cause
Associated with biliary tract obstruction (most common), cholangitis, diverticulitis, pancreatic<unk> , appendicitis and inflammatory bowel disease.
Possible arterial hematogenous seeding: sepsis, direct trauma or instrumentation
Usually polymicrobial
E. histolytica most common
Usually not septic and sick, rarely needs drainage
Associated with sheep farmers
Hepatic abscess
Pyogenic abscess
Acute hepatitis
Aerobic: Escherichia coli, Klebsiella, Pseudomonas
Choledocholithiasis
Anaerobic: Enterococcus, bacteroides, anaerobic streptococci
Splenic infarction
Echinococcosis