- 3 - 4. - Systematic screening and early detection For certain sites, such as the colon or the uterine cervix, a cancer is often preceded by a precancerous lesion; with systematic screening, the affected parts can simply be removed before the tumour develops.
4.- Depistage systematique et detection precoce.- Pour certains organes, comme le colon ou le col de l'uterus, un cancer est bien souvent precede de lesions precancereuses et leur depistage systematique permet de prevenir la formation d'un ./.- 3 - cancer par simple ablation des parties atteintes.
