CryoablationCryoablation of Small Breast Tumors in Early Stage Breast Cancer

Inclusion Criteria:

1. Age ≥ 50
2. Unifocal primary invasive breast carcinoma diagnosed by core needle biopsy
3. Maximum tumor size ≤1.5 cm in its greatest diameter
4. Ultrasound visible lesion(s)
5. Clinically node negative, hormone receptor positive (+). HER2 negative (-), with <25% intraductal component in the aggregate.
6. Unilateral or bilateral disease meeting study criteria
7. Physical and emotional ability to undergo baseline and follow-up breast MRIs and serial breast cosmesis analysis
8. Patient agrees to receive a 5 year minimum course of endocrine therapy following cryoablation for control of systemic disease

Exclusion Criteria:

1. Prior treatment (e.g., open surgical biopsy, lumpectomy) of index cancer
2. Ductal carcinoma in-situ with microinvasions (T1mic)
3. Multifocal or multicentric invasive breast carcinoma
4. Prior or planned neoadjuvant systemic therapy for breast cancer
5. Tumor with ≥25% IDC components