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Detection of Schistosoma mansoni antigen in the liver and antibodies in serum of patients with hepatic schistosomiasis.

Liver biopsies were taken from 28 patients with chronic hepatitic schistosomiasis for histopathological study and S. mansoni antigen detection by indirect immunofluorescence test. Circulating antibodies were estimated by indirect haemagglutination test. Thirteen cases (46.4%) revealed diffuse S. mansoni antigen in the liver blood sinusoids and in the formed granulomata. Circulating antibodies were detected in 21 cases, 11 of them showed antigen in the liver. Five cases only revealed definite granulomatous reactions around bilharzial ova, while the remaining 23 cases showed periportal fibrosis. So, for proper diagnosis of chronic hepatic schistosomiasis, it is recommended to examine the liver for S. mansoni antigen together with circulating antibodies detection.