A core needle biopsy is a procedure that removes small samples of breast tissue using a hollow core needle.

Who performs the procedure?

The procedure is performed by a Radiologist with the assistance of a Technologist.

Why is the procedure performed?

The procedure is performed when there is a mass detected in the breast. It usually allows for a more accurate assessment of a breast mass to determine if it is benign or malignant.

Where is this procedure performed?

This procedure is performed in the Breast Center located in the Weinberg Atrium University of Maryland Medical Center 22 South Greene Street, Baltimore, MD 21201.

Is there any prep for this procedure?

To prepare for a core needle biopsy, you should eat a light meal prior to the procedure. You should not wear any perfumes, powder or deodorant on the day of the exam. If you take blood thinners or aspirin, talk to your physician about whether you should discontinue using them prior to the procedure.

What can I expect before the procedure?

Once you arrive at the Breast Center, you will have to register at the front desk. Please have your insurance information ready at this time. After registration, you will be instructed to remove everything from the waist up. Please wear a skirt or slacks to facilitate the change of clothes.

What can I expect during the procedure?

First, the breast area is anesthetized with an injection of lidocaine. Then, a needle is placed into the breast with the patient lying down. The radiologist or surgeon will guide the needle into the area of concern by palpating (feeling) the lump. If the lump is non-palpable (cannot be felt), the core needle biopsy is performed under image-guidance.

How long is the procedure?

Plan to be in the office for one hour.

What can I expect after the procedure?

After the procedure, you may feel a little breast discomfort around the site and some bruising may occur. Your results will be sent to your doctor.

Are there any risks to this procedure?

This procedure only removes a sample of a mass and not the entire area of concern. Therefore, it is possible that a more serious diagnosis may be missed by limiting the sampling of a mass.

Are there any alternatives to this procedure?

Fine needle aspiration provides an alternative to this procedure.

How do I schedule an appointment?

Please call 410-328-6281/8313 for a Breast Imaging Specialist to schedule your appointment.

NAPBC: National Accreditation Program for Breast Centers
American College of Radiology: Breast Imaging Center of Excellence