Understanding Cancer

An illustration of cancer cells.
Illustration shows benign (not cancer) vs. malignant (cancer) tumors.
Illustration showing the examples of primary cancers and locations to which they can metastasize (spread).
The estimated percentage of cancer cases caused by identifiable and/or potentially preventable factors.
Doctors examining different tools to help diagnose cancer.
Micrographs of squamous-cell carcinoma, Ewing sarcoma, multiple myeloma, acute leukemia, and Hodgkin's lymphoma.
Estimated cancer deaths U.S. in 2013.
Tumor, Node, Metastasis (TNM) staging for breast cancer.
Chart illustrating the 5 stages of cancer.
Illustration shows the location of lymph nodes in the body.
A doctor explains cancer treatment options to a couple in the hospital.
A doctor performs surgery to treat cancer.
A radiation therapist prepares a patient for radiation treatment.
A nurse administers chemotherapy through a catheter to a cancer patient.
Cancer research scientists working in a lab, discovering new cancer treatments.

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Reviewed by Charles Patrick Davis, MD, PhD on Friday, July 22, 2016

Understanding Cancer: Metastasis, Stages of Cancer, and More

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This tool does not provide medical advice. See additional information: Disclaimer