Cancer is the common term for tumors (neoplasms) characterized by uncontrolled growth. Unlike normal cells, cancer cells are atypical in structure and do not have specialized functions. They compete with normal cells for nutrients, eventually killing normal tissue. Cancerous, or malignant, tissue can remain localized, invading only neighboring tissue, or can spread to other tissues or organs via the lymphatic system or blood; virtually all tissues and organs are susceptible.

The branch of medicine concerned with diagnosis, treatment, and research into the causes of cancer is oncology.

Related categories 1

Burzynski Clinic
Offers clinic overview, FAQ, and staff information.
Burzynski Patient Group
Cancer support group with news, statistics, and patient stories.
CanCare
A non-profit cancer support network with a mission to improve the quality of life for cancer survivors and their families.
Chronic Lymphocytic Leukemia Foundation
Funding research directed to finding a cure for chronic lymphocytic leukemia. Offers news, donation opportunities, and project information.
MD Anderson Cancer Center
University of Texas research center; includes information on prevention, clinical trials, proton therapy, resources for patients and professionals, and background on the facility.
US Oncology
Health care network dedicated exclusively to cancer treatment and research. Provides photo library and resources, company information, and official media.
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