. Author manuscript; available in PMC: 2014 Jan 6.

Published in final edited form as: Mod Pathol. 2012 Aug 17;26(1):10.1038/modpathol.2012.135. doi: 10.1038/modpathol.2012.135

Table 1. Summary of the five cases of breast cancer with differences in estrogen receptor staining category between the core biopsy and resection specimens.

Case	Cold ischemia time (min)	Staining results		Diagnosis/histologic grade	Pre-operative chemotherapy
Case	Cold ischemia time (min)	Biopsy	Resection	Diagnosis/histologic grade	Pre-operative chemotherapy
1	115	70%, moderate	8%, weak	Invasive ductal carcinoma/3	Yes
2	122	30%, weak	0%	Invasive ductal carcinoma/3	Yes
3	109	0%	80%, moderate	Invasive ductal carcinoma/3	Yes
4	110	0%	15%, weak	Invasive ductal carcinoma/3	No
5	140	7%, weak	75%, strong	Invasive lobular carcinoma/1	No