Colon – rectum 50-80 Endometrium 40-60 Stomach 11-19 Ovarium 9-12 Hepatobiliary tree 2-7 Bladder and ureter 4-5 Pancreas 3-4 Small bowel 1-4 Central nervous system (glyoblastoma) 1-3

Table 1: Tumours associated with Lynch syndrome and risk of development along the life %.