[Descriptive study of 39 cases of hepatic abscess of pyogenic and amebic origin].

Thirty nine cases of liver abscess--33 pyogenic (LAP) and 6 amebic (LAA)--attended in our hospital between 1980 and 1994, were reviewed. Mean patient age was 55.66 years (LAP) and 35.83 years (LAA), while the relation male/female was 2.3:1 and 5:1 respectively. The most usual underlying pathology in LAP was bile duct disease (39.39%). Four patients with LAA had travelled to endemic areas. Fever was the most frequent clinical finding (71.79%). Echography and/or CT scan confirmed the diagnosis in 32 patients (82.05%), with a sensitivity of 86.66 and 95.65% respectively. Positive cultures were found in 74.35% (39.13% polymicrobials), being E. Coli and K. Pneumoniae the most frequently isolated bacteria. In LAP pus cultures were positive in 73% and blood cultures in 55%. Diagnosis of LAA was made by wet mount smears/serology (3/3). Percutaneous drainage was performed in 41.02%, surgical drainage in 48.71 and 15.38% (all with LAP) received antibiotics exclusively. Four patients died (3 with LAP and 1 with LAA).