- 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.
- Obsolete term for glioblastoma multiforme.
[spongioblast + G. -oma tumor]
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Examples: glitazone, GI cocktail, etc.