Home/Topics/Procedures & Surgery/quadrantectomy Procedures & Surgery Cancer & Oncology Reproductive, Pregnancy & Breast Health quadrantectomy Listen Save Share Print Meaning of quadrantectomy: Surgical removal of the region of the breast (approximately one quarter) containing cancer. Definition of quadrantectomy Surgical removal of the region of the breast (approximately one quarter) containing cancer. Written and maintained by James Murray · Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations. Keep exploringRelated termsMore in Procedures & Surgery → Prevention & Risk human papillomavirus vaccine Built from empty shells of the virus coat, so it shows the immune system the right shape while containing no genetic material at all. Read definition → General Medical Terms AC-T AC-T is a sequential chemotherapy regimen for breast cancer that pairs two drugs given together followed by a third drug given afterward. Read definition → Biological & Chemical Substances estrogen receptor A hormone receptor that works as a gene switch, so blocking it changes what a cell builds rather than merely what it senses. Read definition → Diseases & Disorders Denys-Drash syndrome Denys-Drash syndrome is a rare genetic disorder combining early kidney failure, abnormal sexual development, and a high risk of Wilms tumor. Read definition →
Prevention & Risk human papillomavirus vaccine Built from empty shells of the virus coat, so it shows the immune system the right shape while containing no genetic material at all. Read definition →
General Medical Terms AC-T AC-T is a sequential chemotherapy regimen for breast cancer that pairs two drugs given together followed by a third drug given afterward. Read definition →
Biological & Chemical Substances estrogen receptor A hormone receptor that works as a gene switch, so blocking it changes what a cell builds rather than merely what it senses. Read definition →
Diseases & Disorders Denys-Drash syndrome Denys-Drash syndrome is a rare genetic disorder combining early kidney failure, abnormal sexual development, and a high risk of Wilms tumor. Read definition →