Summary
A brain tumor or intracranial neoplasm occurs when abnormal cells form within the brain.[1] There are two main types of tumors: malignant or cancerous tumors and benign tumors.
Cancerous tumors can be divided into primary tumors that start within the brain, and secondary tumors that have spread from somewhere else, known as brain metastasis tumors.
Initial Overview based on Wikipedia entry Jan. 5, 2016.
OnAir Post: Brain Tumor Overview
