Tumour characteristics of colorectal carcinoma in Ethiopia and Switzerland

Abstract

Introduction In the developed  countries colorectal car- cinoma (CRC) has been documented to increase with age. The age-incidence  curve begins to increase substantially after age 50 (1) CRC rarely affect young adults accounting for  only 2% to 6% of cases (2). Contrary to what  is observed in developed countries, in Ethiopia 61.4% of colorectal carcinomas occur below the age of 50 (3