This observational study seeks to record the incidence of liver cancer in patients with infected with hepatitis C virus that have had stem cell therapy, compared to those who have only had conventional therapy. The study is being conducted at the University of Cairo and proposes to review 280 patients with Hepatitis C by end of December 2013. It is anticipated that half of the participants will have receive stem cell therapy. The incidence of liver cancer will be recorded as the primary outcome.