FISH scores for ER+/HER2- breast cancer tissue samples.

Fluorescence in situ hybridization (FISH) results for 14 paraffin embedded ER+/HER2- breast cancer samples. Scores were calculated as the average number of spots over 20 cancer cells for each chromosomal location and separated into amplified, not amplified and borderline classes as follows: (>4 amplified; 2–4 borderline; <2 not amplified). The last column lists the associated Oncotype Dx score for each sample, 8 have high scores (>31) while 6 have low scores (<18).