The metastatic cancer cells are typically malignant. These fail to move from the site of the original tumor and give place in any part of the body to other tumor formations calls in turn metastases.

These cells are independent from each other and from the tumor from which they derive. The danger comes from their inherent ability to turn both to exploit the circulatory system as a vehicle both for attacking other tissues with different characteristics than the originators.

When you localize exclusively under the skin , they are called metastases subcutaneous and appear as nodules with different characteristics: single or numerous, large or small, hard or soft to the touch and more or less painful. Sometimes they affect the lymph nodes , the other layer or subcutaneous fat over the muscles.

In these cases, under ultrasound guidance, you can be inserted within the secondary tumor, or metastasis, one or more cryoprobes, in order to burn them totally. Cryoablation (internal link to cryosurgery) of the fabric leads him to start a mechanism of apoptosis (or programmed cell death and thus controlled) of the affected volume which will subsequently be resorbed by the body.

Metastasis disappear leaving behind a small scar often no more palpable and visible.