2. phylum - (biology) the major taxonomic group of animals and plants; contains classes. phylum Pyrrophyta, Pyrrophyta-a division of lower plants comprising unicellular and biflagellate algae that form starchy compounds.. phylum - (biology) the major taxonomic group of animals and plants; contains classes. phylum Pyrrophyta, Pyrrophyta-a division of lower plants comprising unicellular and biflagellate algae that form starchy compounds.
1 Breast cancer in premenopausal women tends to be more aggressive, so chemotherapy is often part of the treatment plan. 2  Chemotherapy may be recommended for some women diagnosed with early-stage breast cancer if the cancer is hormone-receptor-negative and HER2-positive.For more information on the specific characteristics of each cancer stage, visit the Breastcancer.org Stages of Breast Cancer page.). Chemotherapy is used after surgery to remove the breast cancer to get rid of any cancer cells that may be left behind and to reduce the risk of the cancer coming back.
Chemotherapy for Small Cell Lung Cancer Chemotherapy (chemo) is treatment with anti-cancer drugs injected into a vein or taken by mouth. These drugs enter the bloodstream and go throughout the body, making this treatment useful for cancer anywhere in the body. When might chemotherapy be used? Chemo is typically part of the treatment for small cell lung cancer (SCLC). This is because SCLC has usually already spread by the time it is found (even if the spread canât be seen on imaging tests), so other treatments such as surgery or radiation therapy would not reach all areas of cancer. 1  For people with limited stage SCLC, chemo is often given along with radiation therapy.