What are the subtypes of breast cancer? Breast cancer has four primary molecular subtypes, defined in large part by hormone receptors (HR) and other types of proteins involved (or not involved) in each cancer: Luminal A or HR+/HER2- (HR-positive/HER2-negative) Luminal B or HR+/HER2+ (HR-positive/HER2-positive) Triple-negative or HR-/HER2- (HR/HER2-negative)
Which breast cancer subtype has the best prognosis? Results: Luminal A was the most commonly diagnosed subtype (59.0%) and had the greatest survival, whereas triple-negative had the poorest survival.
What is the most common type of breast cancer? Invasive ductal carcinoma, also known as infiltrating ductal carcinoma or IDC, is the most common form of breast cancer, accounting for 80% of all breast cancer diagnoses.
What is the most aggressive subtype of breast cancer? Abstract. Triple negative breast cancer (TNBC) is a more aggressive subtype of breast cancer and is characteristic of the absence of the expressions of estrogen receptor, progesterone receptor, and human epithelial growth factor receptor 2 in breast tumor tissues.