What is the difference between benign and malignant tumors?
Benign tumors do not spread into other tissues of the body and almost never convert into an invasive cancer. They usually can be easily removed through surgery. They usually do not grow back. Malignant tumors behave more aggressively. They invade into other tissues, can spread through the body, and when removed surgically have a chance of recurring. A malignant tumor is much more serious than a benign tumor and can be life threatening.
