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Glossary of Terms

Introduction

Parts of this glossary have been taken or adapted from the National Cancer Institute’s Cancer Dictionary and the American Breast Cancer Society’s Breast Cancer Dictionary.

This glossary does not contain definitions of medications. To learn more about specific medications, visit the website of the National Cancer Institute.

Many thanks to the healthcare practitioners who reviewed portions of this glossary:

  • Mechelle Barrick, RN, BSN, OCN, Greater Baltimore Medical Center
  • Debra S. Copit, MD, Albert Einstein Medical Center
  • Ann L. Honebrink, MD, Penn Health at Radnor
  • Isabel I. Law, RN, South Carolina Comprehensive Breast Center
  • Judith Macon, RN, MA, Suburban Hospital Cancer Program
  • Suzanne McGettigan Bensman, MSN, CRNP, AOCN
  • Lisa McGinty, RN, BSN, Abramson Cancer Center, University of Pennsylvania
  • Maria Rocktashel, MSN, CRNP, Delaware Valley Surgical Associates
  • Lynn M. Schuchter, MD, University of Pennsylvania Abramson Cancer Center
  • Michele D. Stolper, Dana-Farber Cancer Institute
  • Fionda N. Williams, RN, BSN, Baltimore City Cancer Program

Glossary

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Q10

A substance found in most body tissues, and in many foods. It can also be made in the laboratory. Q10 is used by the body to produce energy for cells, and as an antioxidant. It is being studied in the treatment of breast cancer and in the relief of side effects caused by some breast cancer treatments. Also called coenzyme Q10, CoQ10, vitamin Q10, and ubiquinone.

quadrantectomy

Surgical removal of breast tissue (approximately one quarter) containing breast cancer cells.

quality of life

The overall enjoyment of life. Many clinical trials assess the effects of cancer and its treatment on the quality of a person's life. These studies measure aspects of an individual's sense of well-being and ability to carry out various activities.

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Glossary of Terms