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What is brain tumor?
Brain tumor is a mass or growth of abnormal cells in your brain.

Abnormal growths or cell masses that form in or around the brain are called brain cancer or brain tumors.

Tumors that develop in the brain are known as primary tumors, and tumors that form in other parts of the body and then spread to the brain are known as secondary or metastatic tumors.There are different types of brain tumors.