Table 3. D310 sequences in normal tissue sampled adjacent to and further away (>2 cm) from tumour in five cases showing ‘field cancerisation’.

Patient	D310 seq. in DCIS	D310 seq. in IDC	D310 seq. in N	D310 seq. in NF
62	C9/C10	C9/C10	C9/C10	C8
74	C8/C9	C9	C9	C8
82	C9	C9	C9/C10	C8
42	C6/C7	C6/C7	C6/C7	C7/C8
38	C7/C8	C7/C8	C7	C8

N=normal tissue adjacent to tumour; NF=normal tissue further away (>2 cm) from tumour; seq.=sequence.