Evaluation of Changes in the Immunological Microenvironment Surrounding Subcutaneous Breast Cancer Metastases After Liquid Nitrogen Cryotherapy

Cryotherapy treatment administered by an interventional radiologist: the cryotherapy needle is placed under local anesthesia, ultrasound monitoring in real time. A complete cryotherapy cycle is performed with: freezing until the entire tumor is frozen as judged by ultrasound, then thawing for the same duration and refreezing according to the same principle.