A core biopsy of the breast is a procedure where a small sample of breast tissue is removed for examination under a microscope. It's a minimally invasive way to diagnose breast conditions, including cancer, and is often performed when imaging tests like mammograms or ultrasounds show abnormalities or when a lump is felt during a physical exam.
What is a core needle biopsy?
For a CNB, the doctor uses a hollow needle to take out pieces of breast tissue from a suspicious area the doctor has felt on exam or has seen on an imaging test. The needle may be attached to a spring-loaded tool that moves the needle in and out of the tissue quickly, or it may be attached to a suction device that helps pull breast tissue into the needle (known as a vacuum-assisted core biopsy).
A small cylinder (core) of tissue is taken out in the needle. Several cores are often removed.
What does it mean if you need a breast biopsy?
Healthcare providers usually order breast biopsies after imaging tests show results that might be signs of breast cancer. For example, a provider may order a breast biopsy if: