ABSTRACT
Many authors suggest the role of hepatitis C virus [HCV] infection in the pathology of B-cell non Hodgkin's lymphomas; this is based on epidemiological, physiopathological and therapeutic arguments. The frequency of the association with hepatitis C virus infection is variable in the different study [1 to30%]. We report two cases of hepatitis C virus infection in association with non Hodgkin's lymphomas. The first case presented a low grade splenic and nodal non-Hodgkin's lymphoma associated with hepatitis C virus infection and complicated by hepato-cellular carcinoma. The second case presented a high grade nodal non-Hodgkin's lymphoma associated with HCV infection. Our cases report confirms the hypothesis of a key role of hepatitis C virus in the pathogenesis of B-cell lymphoproliferative disorders and in particular the non-Hodgkin's lymphoma. Although of several hypothesis concerning the ethiopathogenic mechanisms of this association, new studies will necessary to improve the real mechanism of this association