Brain Tumors: Causes, Symptoms, Diagnosis, and Treatment Introduction A brain tumor is an abnormal growth of cells in or around the brain. Some tumors are benign (non-cancerous), while others are malignant (cancerous). Brain tumors can affect people of all ages and can cause a range of neurological issues depending on their size and location. Types of Brain Tumors Brain tumors are classified into two main categories: 1. Primary Brain Tumors These originate in the brain and do not spread to other parts of the body. Examples include: Gliomas – The most common type, arising from glial cells. Includes glioblastoma, astrocytomas, and oligodendrogliomas. Meningiomas – Develop from the meninges (the protective layers of the brain). Usually benign but can cause pressure on the brain. Pituitary Tumors – Affect the pituitary gland, leading to hormonal imbalances. Medulloblastomas – More common in children, these tumors start in the cerebellum. 2. Secondary (Metastatic) Brain Tumors These origina...
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