CT-Guided Seed Localization in the Breast and Axilla.

OBJECTIVE. The purpose of this study was to review preoperative CT-guided seed localization in the breast and axilla performed at my institution for lesions not visualized on routine mammography and ultrasound after neoadjuvant chemotherapy. CONCLUSION. Ten lesions (seven in the axilla, two in the breast, and one in the supraclavicular region) were localized with a radioactive seed under CT guidance. All were successfully excised at surgery, suggesting that CT guidance can be used when needle localization is not feasible using mammography or sonography.