Table 1 Simplified St. Gallen categories of the molecular subtypes
From: Role of ultrasound in predicting the molecular subtypes of invasive breast ductal carcinoma
LA subtype | ER and/or PR positive, HER2 negative, and Ki-67 index < 14% |
LB (HER2−) subtype | ER and/or PR positive, HER2 negative, and Ki-67 > 14% |
LB (HER2+) subtype | ER and/or PR positive and HER-2 positive and Ki-67 > 14% |
HER2 subtype | ER, PR negative, and HER 2 positive |
TN subtype | ER, PR, and HER 2 negative |