Colonic cancer in adolescents. A report of three cases.

Colorectal cancer is a common malignant neoplasm in adults, with a peak incidence of 60-79 years. About 1 million cases of the disease and half a million deaths associated with it are reported world-wide each year. Colorectal cancer, however, is very uncommon in children and adolescents. This is a presentation of 3 cases of colon cancer in Nigerians aged 17 and 19 years. Two of them were adenocarcinoma and the other leiomyosarcoma. The pathogenesis and aspects of management are discussed.