Needle Localizations

SMIL offers a needle localization exam for the breasts in Scottsdale and Gilbert, Arizona. A needle localization exam of the breast is done when another breast exam shows breast lumps or abnormalities. A needle localization of the breast is a pre-surgical procedure in which a wire is inserted via a hollow needle into the breast to localize (pinpoint) either a mass or calcifications which may not be felt on physical examination.

During a needle localization exam of the breasts, imaging is used to place a needle next to an abnormal area in the breast. Then, in the operating room, the surgeon uses the wire as a guide and can remove both the abnormal area and the wire.

The Radiologist will numb the area of your breast with a local anesthetic and insert a localization needle into your breast, pointing toward the spot that needs to be biopsied. The Radiologist will then take more images to confirm the position of the needle and withdraw the needle leaving the wire behind. One last mammogram image will be taken to confirm the placement of the wire.

Needle localization of the breasts typically takes thirty minutes to perform before a patient goes to surgery.

Learn how to prepare for a needle localization exam of the breasts in the preparations for a needle localization exam of the breasts section.

Find out if a needle localization exam is right for you in the benefits and risks of a needle localization exam of the breasts section.

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Bruce
Jul 26, 2026
Very helpful staff. They did their best straightening out a confusing request from the ordering physician's office, hopefully preventing billing issues.
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Kayleen
Jul 25, 2026
I have been going to SMIL for over 10 years now I have always gone to the Scottsdale location. I had to go in for my mammogram and they always need extra . This time around I had to go to the Gilbert location. From the start at the front desk all the way to the back their staff is amazing. Everyone was kind and made me feel comfortable and it went smoothly. I drive 200 miles just to come to one of their facilities. For the very first time that I have been going there the Gilbert site had the Dr actually come in to let me know my results and introduce himself. I have decided this is the one, I will be going to from now on.
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Kimberly
Jul 24, 2026
customer service was impeccable. Such a nice simple thing that makes going to Dr. visits much more pleasurable, Thank you
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Chillinherepeople
Jul 23, 2026
Excellent customer service and knowledgeable.
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Melissa
Jul 23, 2026
I've had my fair share of MRIs over the years, and this was by far the most pleasant experience I've had. From check-in to the scan itself, the whole process felt easy and stress-free. A huge thank you to LuLu and Michelle — they were both incredibly kind and made sure I felt comfortable and at ease the entire time. Their care and attentiveness turned what's usually a stressful appointment into a genuinely positive one. It's clear they truly care about their patients. If you're nervous about getting an MRI, I can't recommend this location enough — ask for LuLu and Michelle if you can!
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