Definition. 1  A lumpectomy is a type of surgery used to treat breast cancer. 2  Lumpectomy is a surgical treatment for newly diagnosed breast cancer. 3  The extent and severity of a cancer is evaluated or staged according to a fairly complex system.
Common side effects when used by mouth include shortness of breath, headache, numbness, depression, skin dryness, itchiness, hair loss, vomiting, muscle pains, and vision changes. Other severe side effects include high white blood cell counts and blood clots. When used as a cream side effects include skin redness, peeling, and sun sensitivity. Use during pregnancy is known to harm the baby. It is in the retinoid family of medications. Tretinoin was patented in 1957 and approved for medical use in 1962.
Wash your hands after using the medication to avoid accidentally getting it in your eyes. During the first few weeks of using tretinoin, your acne might appear worse because the medication is working on pimples forming inside the skin. It may take up to 8-12 weeks to notice results from this medication. Use it regularly in order to get the most benefit from it.