In the overall cohort (n = 125), tumor tissue showed higher semiquantitative expression levels of EGFR (200 (105–280) vs. 120 (70–165), p < 0.001) but lower expression levels of p-mTOR (0 (0–10) vs. 40 (10–80), p < 0.001) and ER (0 (0–0) vs. 60 (15–180), p = 0.191). The gene discussed is ESR1; the disease is neoplasm.