Luminal B Breast Cancer Prognosis

Breast cancer groups include.

Luminal b breast cancer prognosis.

About 30 45 percent of breast cancers are luminal a tumors. Luminal type breast cancer showed better prognosis than other subtypes and additionally when we divide luminal type breast cancer to types a and b by ki 67 expression cutoff value 14 luminal type a ki 67 14 breast cancer showed a lower relapse risk and a longer survival period than luminal type b ki 67 14 breast cancer. Luminal a breast cancers are likely to benefit from hormone therapy and may also benefit from chemotherapy. Breast cancer facts figures 2019 2020 3 luminal a hr her2.

Group 2 luminal b. Luminal a tumors are associated with the most favorable prognosis. Clinical data of 695 luminal b like breast cancer patients who had been treated in our hospital during the period of past 4 5 years were collected and analyzed. Luminal a cancers are low grade tend to grow slowly and have the best prognosis.

Luminal b breast cancer is hormone receptor. Luminal a breast cancer is hormone receptor positive estrogen receptor and or progesterone receptor positive her2 negative and has low levels of the protein ki 67 which helps control how fast cancer cells grow. These groups help guide decisions about which treatments are best. According to the report hr positive cancers such as luminal cancers have higher survival.

Estrogen receptor er progesterone receptor pgr antigen identified by monoclonal antibody ki 67 ki67 were immunohistochemically detected. The risk of recurrence and metastasis in patients with luminal b breast cancer during a 2 to 5 year period and after 5 years was still present but the risk in patients with non luminal breast. Luminal tumor cells look like those of breast cancers that start in the inner luminal cells lining the mammary ducts. This is the most common type of breast cancer figure 1 and tends to be slower growing and less aggressive than other subtypes.

Moreover the two er breast cancer subtypes luminal a and luminal b are linked with a good prognosis and excellent long term survival approximately 80 85 5 year survival whereas the er negative subtypes her2 and basal like are challenging to manage and are linked with poor prognosis approximately 50 60 5 year survival. Of the 4 major subtypes luminal a tumors tend to have the best prognosis with fairly high survival rates and fairly low recurrence rates. Group 1 luminal a. This study aimed to examine the prognostic factors of luminal b like breast cancer.