**8. Conclusions**

Hyperthermia, thanks to the improved systems for achieving an optimal distribution of heat inside the tumor and precise and noninvasive thermometry, is today an important treatment modality in the treatment of cancer, and its results are strongly supported by criteria of evidence-based medicine. Hyperthermia is an important treatment modality in cancer treatment and its results are strongly supported by criteria of evidence-based medicine. Hyperthermia is a therapeutic modality that, employing nonionizing radiations, can be used not only by radiation oncologists but also by clinical oncologists. Its addition to radiotherapy with or without chemotherapy is important when it is necessary to treat advanced or high-risk tumors, or to retreat a relapse in a pre-irradiated area. Hyperthermia appears to be the fourth pillar besides surgery, radiotherapy and chemotherapy.
