The proportions of luminal A (ER+/PR+/HER2-/Ki-67 low (≤14%)), luminal B1 (HR+/HER2−/Ki-67 high (>14%)), luminal B2 (HR+/HER2+), HER2 overexpression, triple negative breast cancer (TNBC) (HR-/HER2-) subtype were 22.09%, 38.57%, 12.11%, 14.35% and 12.89%, respectively. The gene discussed is ERBB2; the disease is triple-negative breast carcinoma.