This is a prospective transversal study that will include 140 postmenopausal women with unifocal invasive breast cancer diagnosed with core or vacuum-assisted biopsy, up to 2 cm measured in ultrasound and contrast enhanced mammography, without metastatic lymph nodes in axillary ultrasound, hormone receptor positive and human epidermal factor receptor 2 (HER) negative. Patients with invasive lobular carcinoma, extensive intraductal component, not suitable for surgery or with metastatic disease will be excluded.
Participants will receive cryoablation treatment of the tumor and, after, they will undergo radio-guided surgical resection. The presence of residual viable tumoral cells will be evaluated in the surgical specimen. Axillary evaluation during surgery and adjuvant treatment will be planned accordant to the usual clinical practice.
Cryoablation and surgery side effects and tolerance will be evaluated.
