A series of those with liver abscess who underwent medical treatment and/or surgical intervention at the department of Internal Medicine and General Surgery of S. N. U. H. over the period of 1964 to 1970 has been analyzed.
1. Of 112 cases, 63 (56. 5%) were amebic and 49(43.50) pyogenic, the rate of amebic to pyogenic abscess was 2. 6 to 2.
2. A tendency was seen in incidence, decreasing in amebic (62% to 51%) while increasing in
pyogenic abscess (38% to 49%) between two different terms of 1964 .to. 1967 and 1968 to 1970 respectively.
3. In sex incidence, predominences were put on male in both types, showing the male to female rate of 8:1 in amebic and 4 : 1 in pyogenic abscess.
4. Liver abscess occurs most frequently during adult life) with peak incidence in the 4 th decade both in amebic and pyogenic.
5. The right lobe was more often attacked (77. 6%) than the left (15. 2%) in both types. In 7. 2% of them, both lobes were attacked. Cases with a solitary abscess were 76.8% (86 cases) and those with multiple lesions 23.2% (26 cases).
6. In cases with amebic abscess, E. histolytica could hardly be detected, meanwhile in those with pyogenic abscess, positive culture was 40% among 49 pyogenic cases, showing coagulase (-I-) staphylococci, E. coli, Coliform bacilli and Nonhemolytic streptococci, etc.
7. Complications developed in 33. 6% (38 cases) and mortality was 9. 0%, in amebic 4. 2% and in pyogenic 12.9%.
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