Laser light is then precisely aimed to cut or destroy a tumour. Laser-induced interstitial thermotherapy (LITT), or interstitial laser Photocoagulation, also uses lasers to treat some cancers. LITT is similar to a cancer treatment called hyperthermia, which uses heat to shrink tumours by damaging or killing cancer.
Laser is a cutting mechanism. It’s a bladeless knife. The usage of laser has enabled surgeons to remove tumours where instruments may not reach but laser rays can eg. larynx. with this advent open laryngeal surgeries for certain smaller laryngeal cancers is a history. CO 2 laser is commonly used in it.