Final answer:
A benign tumor is a mass of cells that remains localized and does not spread from its original location.
Step-by-step explanation:
A benign tumor is a mass of cells that remains localized and does not spread from its original location. Unlike malignant tumors, which can invade and damage neighboring tissues, benign tumors are not life-threatening. In some cases, benign tumors may be surgically removed for the comfort of the patient or because there is a potential for the cells in the tumor to become cancerous.