A study on laboratory diagnosis of liver abscess in Pondicherry.

A study was carried out to evaluate the role of laboratory investigations for diagnosis of liver abscess from the year 1976 to 1981. Bacteriological, parasitological, serological, haematological, histopathological studies and liver function tests were carried out in 240 confirmed cases of liver abscess during the study period. Out of 219 cases, pus culture for pyogenic bacteria was positive in 68 cases (including 27 cases of secondary bacterial infection of amoebic liver abscess) and sterile in 151 cases. Ent histolytica was demonstrated in pus of 24 cases. The diagnostic titre of 1:128 and above was detected in 137 sera by isohaemagglutination test. The liver function tests were of limited value. Albumin globulin ratio was altered in 91.25% cases and there was moderate increase in the levels of alkaline phosphatase. Histopathological studies demonstrated Ent histolitica in 2 cases only. Changes characteristic of pyogenic liver abscess were observed in 6 cases. Rest showed no specific changes.