NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,209 terms related to cancer and medicine.

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glioblastoma multiforme
(GLEE-oh-blas-TOH-muh MUL-tih-form)
A fast-growing type of central nervous system tumor that forms from glial (supportive) tissue of the brain and spinal cord and has cells that look very different from normal cells. Glioblastoma multiforme usually occurs in adults and affects the brain more often than the spinal cord. Also called GBM, glioblastoma, and grade IV astrocytoma.