glioblastoma

glio·blas·to·ma .glī-(.)ō-bla-'stō-mə n, pl -mas also -ma·ta -mət-ə a malignant rapidly growing astrocytoma of the central nervous system and usu. of a cerebral hemisphere called also spongioblastoma

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n.
the most aggressive type of brain tumour derived from non-nervous (glial) tissue (see astrocytoma). Its rapid enlargement destroys normal brain cells, with a progressive loss of function, and raises intracranial pressure, causing headache, vomiting, and drowsiness. Treatment is never curative and the prognosis is poor.

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glio·blas·to·ma (gli″o-blas-toґmə) [glio- + blastoma] the most malignant type of astrocytoma, classified as Grade IV, one of the most common primary tumors of the brain; it also occurs in the brainstem in children and occasionally in the spinal cord of an adult or child. It grows rapidly, is usually found in the cerebral hemispheres, and is composed of a mixture of spongioblasts, astroblasts, and astrocytes. Called also glioblastoma multiforґme and spongioblastoma multiforme. glioblastomatous adj

Glioblastoma. MRI demonstrates a large contrast-enhancing left temporal lesion with an irregular border as well as a central lucency suggesting an area of necrosis.


Medical dictionary. 2011.

Look at other dictionaries:

  • glioblastoma — m. oncol. Tumor maligno del sistema nervioso central que se halla compuesto por tejido nervioso embrionario. Medical Dictionary. 2011. glioblastoma …   Diccionario médico

  • glioblastoma — 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 usually occurs in adults and affects the brain more… …   English dictionary of cancer terms

  • glioblastoma — noun (plural mas; also glioblastomata) Etymology: New Latin, from glia glia + blast + oma Date: circa 1923 a malignant rapidly growing astrocytoma of the central nervous system and usually of a cerebral hemisphere called also glioblastoma… …   New Collegiate Dictionary

  • glioblastoma — Highly malignant brain tumour derived from glial cells …   Dictionary of molecular biology

  • glioblastoma — gli·o·blas·to·ma (glē ō blă stōʹmə, glī ) n. pl. gli·o·blas·to·mas or gli·o·blas·to·ma·ta ( mə tə) A malignant tumor of the central nervous system, usually occurring in the cerebrum of adults.   [glia + blastoma.] * * * …   Universalium

  • glioblastoma — noun A fast growing, malignant tumor of the brain …   Wiktionary

  • glioblastoma — ġli·o·bla·stò·ma s.m. TS med. tumore maligno di origine gliale {{line}} {{/line}} DATA: 1956. ETIMO: der. di glio e blasto con oma …   Dizionario italiano

  • glioblastoma — [ˌglʌɪə(ʊ)bla stəʊmə] noun (plural glioblastomas or glioblastomata mətə) Medicine a highly invasive glioma in the brain …   English new terms dictionary

  • glioblastoma — glio·blas·to·ma …   English syllables

  • glioblastoma — n. the most aggressive type of brain tumour derived from non nervous (glial) tissue (see astrocytoma). Its rapid enlargement destroys normal brain cells, with a progressive loss of function, and raises intracranial pressure, causing headache,… …   The new mediacal dictionary

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