“…It is well recognised that schistosomiasis predisposes to cancer, possibly by the production of carcinogens through interference with the metabolism of tryptophan (Abdel-Tawab et al, 1968); Chaves (1966) suggested that, in his case of squamous cell carcinoma of cervix with rhabdomyosarcoma of uterine body, the specific reactions may have had "a growth stimulating effect in a sensitized area". Charlewood et al (1949), in South Africa, reported 1 case of squamous cell carcinoma and another of metaplasia to a squamous type in association with bilhanial infestation, and Mfi (1948), in Egypt, found 4 cases of bilharziasis in 64 cases of carcinoma of the body of the uterus.…”