Brain Tumor Frequently Asked Questions

Premier Health providers answer frequently asked questions about brain tumors. 

What is the difference between a benign tumor and a malignant tumor?

Primary brain tumors are categorized in one of two ways: benign and malignant. The less aggressive type of brain tumor is called benign. These tumors grow slowly and typically have clear borders that do not invade surrounding tissue. Meningiomas are an example brain tumors that are usually benign. Benign tumors can disrupt proper brain function by growing to a size where they are pressing on surrounding tissues. The other category is malignant brain tumors. Malignant brain tumors grow more rapidly, have uneven borders, and invade surrounding tissue. The majority of primary malignant brain tumors are a type of tumor known as a glioma. All secondary brain tumors are considered malignant.

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