GBM

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. GBM usually occurs in adults and affects the brain more often than the spinal cord. Also called glioblastoma, glioblastoma multiforme, and grade IV astrocytoma.
Found on http://www.cancer.gov/dictionary?expand=G

GBM

Glioblastoma multiforme
Found on http://www.translationdirectory.com/glossaries/glossary124.htm
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