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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Maxine
Aug 25, 2026
If I could give you 10 stars I would! I was at your Mountainview location in Scottsdale. From the time I walked through the door until I walked out, everyone I encountered was friendly, professional, and polite. The gal who did my Mammo and the one who did the ultrasound immediately put me at ease. The fact that my results were sent to me within 2 hours of leaving was unbelievable. No worrying or chewing my nails waiting for results! Thank you to everyone who saw me…see you next year! Maxine Beiriger
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Jennifer
Aug 23, 2026
My daughter has autism and was getting her first MRI and IV (for the contrast). I can’t believe how kind and caring the staff was from the moment we walked in the door! They really went the extra mile to make her comfortable.
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Butterfly
Aug 22, 2026
Excellent customer service. Got right in and out.
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Kris
Aug 20, 2026
Nice facility. The techs who performed my test were professional and pleasant.
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GM
Aug 20, 2026
Sophia the scheduler handled scheduling my appointment very quickly and competently. Thanks for the great customer service Sophia. The mammogram tech, Bridget, got me in and out of there quickly. Polite, professional, & quick service! Thank you for the fantastic cutomer service! SAME DAY RESULTS TO BOOT!
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