Last Updated on Feb 21, 2017

Glossary

Tumor: An abnormal overgrowth of cells. Tumors can be either benign or malignant.

Benign growth: A swelling or growth that is not cancerous and does not spread from one part of the body to another.

Cancer: A group of diseases in which malignant cells grow out of control and spread to other parts of the body.

Biopsy: The surgical removal of tissue for microscopic examination to aid in diagnosis.

CAT scan (CT scan): A test using computers and X-rays to create images of various parts of the body.

Chemotherapy: The treatment of cancer with drugs.

MRI (Magnetic resonance imaging): A sophisticated test that provides in-depth images of organs and structures in the body.

Radiation therapy: X-ray treatment that damages or kills cancer cells.

Primary tumor: The original cancer site. For example, breast cancer that has spread to the bone is still called breast cancer.

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