Cancer Biology 2020

Cancer

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body A benign tumor is a mass of cells that lack the ability to invade neighboring tissue or metastasize. These do not spread into, or invade nearby tissues; however, they can sometimes be quite large. When removed, usually they don't grow back. Malignant means that the tumor is made of cancer cells and it can invade nearby tissues. Some cancer cells can move into the bloodstream or lymph nodes, where they can spread to other tissues within the body-this is called metastasis. Cancer can occur anywhere in the body, including the breast, lungs, intestines, reproductive organs, blood, or skin.