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Glioblastoma is a type of cancerous (malignant), fast-growing tumor that originates in the brain and, less frequently, in the spinal cord. Glioblastomas are the most advanced form of a group of brain tumors called gliomas.
Glioblastomas are tumors that arise from astrocytes, which are the star-shaped cells that make up the supportive tissue of the brain. These tumors are usually highly malignant (cancerous) because the cells reproduce quickly and because glioblastomas are supported by a large network of blood vessels. In addition, because glioblastomas have finger-like tentacles, they are very difficult to completely remove surgically, especially when they grow near parts of the brain that control important functions.
Symptoms vary based on size and location of the tumor. They may include:
Diagnosis includes a neurological exam with a physician for balance, reflexes, vision, hearing, and other neurological function and brain imaging (including MRI, CT, and PET).
Learn more about glioblastoma treatment at Brigham and Women’s Hospital.
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