Table 2 Details of the positive/negative discrepancies using the cutoff of H score of 10.

H score		Internal control
Core biopsy	Excision	Core biopsy	Excision	Time between core biopsy and surgery (days)	Systemic treatment before surgery	Tumour type and grade
0	30	Positive	Positive	40	None	NST, grade 3
0	55	Positive	Positive	124	None	NST, grade 2
10	0	Positive	Positive	31	None	NST, grade 3
20	0	Positive	Positive	31	None	NST, grade 3
40	2	Positive	Positive	43	None	NST, grade 3
10	0	None present	Positive	97	Chemotherapy	NST, grade 3
80	5	Positive	Positive	134	Chemotherapy	NST, grade 3

NST, no special type.