brain tumor is a growth of abnormal cells in the brain. There are many types of brain tumors. Some brain tumors are benign, and some are malignant. Brain tumors can start in your brain (primary brain tumors) or cancer can start in other parts of your body and spread to your brain (secondary or metastatic tumors).

Non-contrast computed tomography of the brain is an imaging technique widely used in the diagnosis of neurological diseases. Cranial computed tomography is indicated for effective examination of intracranial and skull bone diseases, including intraaxial brain tumors.