Just like a cyst anywhere else in your body, a cyst in the brain is a sphere filled with fluid—much like a balloon filled with water. They may contain fluid,

Ependymomas arise from the ependymal cells that line the ventricles of the brain and the center of the spinal cord. They are soft, grayish, or red tumors which may contain cysts

Germ cells are reproductive cells in a human embryo that may travel to different parts of the body during development, such as the brain, chest, and pelvis. If these cells

Glioblastomas (also called GBM) are malignant (cancerous) grade 4 tumors. The tumor is predominantly made up of abnormal astrocytic cells, but also contains a mix of different cell types (including

“Glioma” is a general term used to describe any tumor that arises from the supportive (“gluey”) tissue of the brain. This tissue, called “glia,” helps to keep the neurons in

A hemangioma is an abnormal buildup of blood vessels in the skin or internal organs. Two types of hemangiomas are discussed here: Hemangioblastoma: These tumors are benign (non-cancerous), slow-growing, and well

Lipomas of the nervous system are rare, benign (non-cancerous) tumors composed of fatty tissue. Lipomas in the brain are believed to be congenital abnormalities rather than true tumors and may

Lymphoma is a cancer that arises from the cells of the lymphatic system. Primary CNS Lymphoma (PCNSL) is a rare type of diffuse B cell lymphoma that affects parts of

Medulloblastoma is the most common malignant (cancerous) central nervous system tumor of childhood. It is a fast-growing, high-grade tumor that may spread throughout the central nervous system. Medulloblastoma can be