How do doctors know when is chemotherapy needed for ductal and lobular breast cancer?

Depends. Depends on the stage of the disease, cell type, size of cancer, whether lymph nodes are involved, hormone receptors, dna oncotype testing, etc. Many decades of research helps the medical oncologisr discuss with the patient their options & choices.
It depends on stage. Chemotherapy is given to women who are at high risk for spread of cancer. This is dependent on the stage of the disease at diagnosis. The stage is based on size of the tumor and if the lymph nodes are involved by breast cancer. I am sure your oncologist would explain all these factors which determine the risk of recurrence of cancer and thus may or may not justify the use of chemotherapy.

Related Questions

Dear doctor. Can I use kelp supplement of GNC trademark during chemotherapy for breast cancer ER+ /PR+ -HER2-, and is it safe to take wheat germ oil?

Should be safe but: Nutritional support has been shown to both reduce the toxicity and improve effectiveness of chemotherapy. This should be safe but since I don't know which meds you will be given check this chart to be sure: http://tinyurl. Com/lnmoojl Also see http://www. Ncbi. Nlm. Nih. Gov/pubmed/17283738 and http://tinyurl. Com/l9pdmjd A healthy diet is important too. See http://tinyurl. Com/ov7zsq3 Good luck!

My mom had invasive lobular breast cancer. Is that more hereditary than invasive ductal?

Controversial opinio. Dr Rau of the Paracelsus Institute has found that most cases of invasive breast cancer are due to poor root canal therapy outcomes draining from the mandible on the same side. The issue with unresolved mandibular infection is more important than genetic factors in predicting such cancer development. I find that the issue is more related to jaw infection than RCT involvement.
Probably no, but... Most of the statistics I have seen show similar rates of lobular cancer in carriers of BRCA 1/2 mutations (which is the most common recognizable inherited breast cancer trait) compared to non-carriers. Exception: carriers of CDH1 mutations (hereditary diffuse gastric cancer syndrome) have high risk for aggressive stomach cancer and lobular breast cancer.

My mom had lobular breast cancer at 52. Brca negative. Is lobular breast cancer more genetic based than ductal?

No its medullary. A quote from Lancethttp://www. Ncbi. Nlm. Nih. Gov/pubmed/9167459: "The occurrence of invasive lobular carcinoma and invasive ductal carcinoma was not significantly different between carriers of BRCA1 or BRCA2 mutations and controls. Medullary or atypical medullary carcinoma was, however, found more often in BRCA1 (13%, p.