cancer
Development and Spread of Cancer
Spread
Cancer can grow directly into (invade) surrounding tissue or spread to tissues or organs, nearby or distant. Cancer can spread through the Overview of the Lymphatic System . This type of spread is typical of carcinomas. For example, breast cancer usually spreads first to the nearby lymph nodes in the armpit, and only later does it spread to distant sites. Cancer can also spread via the bloodstream. This type of spread is typical of sarcomas. 