Schistosoma mansoni infection and hepatocellular carcinoma: a comorbidity study.
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BACKGROUND: The implication of human Schistosoma mansoni (S. mansoni) infection in concomitance with other risk factors such as hepatitis C virus (HCV) and hepatitis B virus (HBV) in the development of hepatocellular carcinoma (HCC) is still under controversy. This work aimed. to evaluate the role of S. mansoni infection in association with hepatitis B virus (HBV), hepatitis C virus (HCV) and other risk factors in the development and/or progress of HCC. METHODS: The present study was carried out on 90 HCC patients recruited from Kafr El-Sheikh Liver Disease Research Institute. After obtaining their informed consents, socio-demographic and clinical data were collected and patients were examined for S. mansoni by Kato-Katz and indirect hemagglutination (IHA) techniques. Alpha-fetoprotein (AFP) level was determined. The Child-Pugh scoring system and Barcelona Clinic Liver Cancer (BCLC) staging system were used to evaluate the pathological features of the studied patients. RESULTS: All participants were negative for active S. mansoni by Kato-Katz. Based on IHA, the participants were categorized into two groups: group I: sixty-two patients negative for S. mansoni and group II: twenty-eight schistosomiasis positive. The patients' age ranged between 40->60, HCC was more prevalent in the age range of > 50-60 years in both groups. Males were more than females and rural participants were more than urban patients in both groups. Most of the patients (88.9%) had HCV while 7.8% had HBV. A higher proportion of HCC patients showed concomitant HCV and S. mansoni (92.6%) than the S. mansoni negative group. The frequency of upper gastrointestinal bleeding (GIB) was four-fold higher among HCC patients positive for schistosomiasis compared to negative schistosomiasis cases (64% vs. 16%). Alpha-fetoprotein (AFP) level was higher in group II than that in group I with no significant difference. Statistical analysis showed no difference between the two studied groups regarding Child scores. On the contrary, BCLC class D was significantly higher among HCC positive schistosomiasis cases compared to the negative group. CONCLUSION: Concomitant S. mansoni with HCV and HBV potentiate HCC progression.