F. Fouad Saleep(1), I. Fayek(1), I. Farahat(2) (1)National Cancer Institute - Cairo University, Surgical Oncology Department, Cairo, Egypt. (2)National Cancer Institute - Cairo University, Pathology Department, Cairo, Egypt. Poster presentation No.3224 at the 17th European Cancer Organization conference ECCO 17, Amsterdam-Netherlands, September 2013