👉 Cionotomy is a surgical procedure used to remove tumors from the brain or spinal cord. It involves cutting through the skull with an endoscope (a long tube-like instrument) and using a laser or radio wave to destroy the tumor. This can be done in two stages, called "corticoids" and "fasciculi." The goal of cionotomy is to remove as much cancerous tissue as possible, while minimizing damage to normal brain cells.