Hereditary factors are unlikely behind unusual pattern of early - Onset colorectal cancer in Egyptians: A study of family history and pathology features in Egyptians with large bowel cancer (cross-sectional study).

Background: Colorectal cancer in Egypt has a higher incidence in young patients compared to western countries, where the disease is more prevalent in the old age group. This difference has been attributed to higher incidence of hereditary cancers in young Egyptian patients. The aim of this study is to compare the family history criteria and pathology features of tumors in young (≤40 years) and old (>40 years) Egyptian patients with adenocarcinoma of the colon and rectum.