Absolute alcohol, injected into cells, causes interruption of tumor blood supply, dehydration of tumor cell and denaturation of intracellular protein, which leads to cancer cell death and tumor ablation.
Under the guidance of ultrasound or CT, a puncture needle is inserted into the tumor percutaneously and 100% alcohol is slowly injected. Generally, 5-6 injections are required.
It is mainly used to treat a single liver tumor with < 5cm diameter, liver cancer that is difficult to remove surgically and has less than 3 foci with < 3cm diameter, liver cancer surrounded by scar tissue and liver cancer that is not close to the liver surface. It can also be applied to treat other solid tumors.
It is reported that the effective rate of alcohol injection is 90%-100% for liver cancer that is smaller than 2 cm, 70% for 3 cm liver cancer, and 50% for about 5 cm liver cancer.