Cancer
Cancer is a disease that occurs when the cells in the body grow and divide uncontrollably, leading to the formation of abnormal masses of cells called tumors. These tumors can be either benign (not cancerous) or malignant (cancerous), and can develop in any part of the body. Malignant tumors can spread to other parts of the body through the bloodstream or lymphatic system, leading to the growth of new tumors in different areas, a process called metastasis. Cancer can cause a range of symptoms and health complications, depending on its location and stage. There are many different types of cancer, each with unique characteristics, risk factors, and treatment options.
American cancer society
At the American Cancer Society, we’re on a mission to free the world from cancer. Until we do, we’ll be funding and conducting research, sharing expert information, supporting patients, and spreading the word about prevention. All so you can live longer — and better.
cancer.net
The best cancer care starts with the best cancer information. With nearly 45,000 members who are leaders in advancing cancer care, the American Society of Clinical Oncology (ASCO) is the voice of the world’s cancer physicians.
breastcancer.org
We are the leading patient-focused resource for breast health and breast cancer information and support. We engage, educate, and empower people with our expert information and dynamic peer support community to help them make the best decisions for their lives.
national breast cancer foundation, inc
National Breast Cancer Foundation was founded in 1991 by breast cancer survivor, Janelle Hail. She was diagnosed with breast cancer in 1980 at the age of 34.