. 2015 Mar 24;14(3):401–410. doi: 10.1007/s10689-015-9792-1

Table 2.

Referral criteria for familial colorectal cancer

A healthy person with two first degree relatives with colorectal cancer 50–70 years^a

A healthy person with a first degree relative with colorectal cancer 50–70 years and a second degree relative with colorectal cancer <70 years^a

A colorectal cancer patient with a first degree relative with colorectal cancer both 50–70 years

A colorectal cancer patient 50–70 years and a second degree relative with colorectal cancer <70 years

^aFamily members must all be genetically related (paternal or maternal lineage)