spongioblastoma


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spongioblastoma

 [spun″je-o-blas-to´mah]
a tumor containing spongioblasts; types include glioblastoma and gliosarcoma.

spon·gi·o·blas·to·ma

(spŭn'jē-ō-blas-tō'mă),
1. A glioma consisting of cells (elongated, spindle-shaped, and sometimes pleomorphic, with one or two fibrillary processes) that resemble the embryonic spongioblasts, occurring normally around the neural canal of the human embryo; it grows relatively slowly, usually originating in the brainstem, optic chiasm, or infundibulum; infiltrates adjacent structures or causes compression of the third and fourth ventricles. Spongioblastomas were formerly subclassified as spongioblastoma polare and spongioblastoma unipolare.
2. Obsolete term for glioblastoma multiforme.
[spongioblast + G. -oma tumor]

spongioblastoma

/spon·gio·blas·to·ma/ (spun″je-o-blas-to´mah) a tumor containing spongioblasts; considered to be one of the neuroepithelial tumors.

spongioblastoma

[spun′jē·ōblastō′mə] pl. spongioblastomas, spongioblastomata
Etymology: Gk, spongia + blastos, germ, oma, tumor
a neoplasm composed of spongioblasts, embryonic epithelial cells that develop around the neural tube and transform into cells of the supporting connective tissue of nerve cells or cells of lining membranes of the ventricles and the spinal cord canal. Also called glioblastoma, gliosarcoma, spongiocytoma.

spon·gi·o·blas·to·ma

(spŏn'jē-ō-blas-tō'mă)
A glioma consisting of cells (elongated, spindle-shaped, and sometimes pleomorphic, with one or two fibrillary processes), which resembles the embryonic spongioblasts, occurring normally around the neural canal of the human embryo; it grows relatively slowly, usually originating in the brainstem, optic chiasm, or infundibulum, and infiltrates adjacent structures or causes compression of the third and fourth ventricle.
[spongioblast + G. -oma tumor]

spongioblastoma

a tumor containing spongioblasts; a type of astrocytoma.