Application of the Technique Stereotactic Body Radiotherapy (SBRT) in Pulmonary Metastases of Sarcomatoso Origin, Review of Highlighted Literature

Stereotactic body radiotherapy (SBRT) is a radiotherapy technique that provides radiation from many different positions around the body. The rays are focused on the tumor, with this we achieve that the lesion receives a high dose of radiation and the tissues around it receive a low dose, thus reducing the risk of side effects. It is applied between 1 and 5 sessions, and therefore it is possible to reduce the treatment time compared with a conventional treatment. This radiation therapy is also called stereotactic ablative radiotherapy (SABR). The SBRT for the treatment of pulmonary sarcoma metastases can play an important role in the following circumstances:

a. Inoperable metastases at critical sites.

b. Recurrent metastases.

c. Inoperable patients due to limited lung function

d. And especially in metastasis of tumor types particularly resistant to the dose of radiotherapy used in previous SBRT techniques such as chordoma, chondrosarcoma, osteosarcoma, where, thanks to the development of SBRT, it is possible to deliver a higher biological dose. With this new technique, one can speak of providing excellent local control of pulmonary sarcoma metastases with an impact on survival in selected patients.