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ol·i·go·as·tro·cy·to·ma | \ ˈä-li-gō-ˌa-strə-sī-ˈtō-mə, ˈō-, ə-ˈli-gə- 
\
\ plural oligoastrocytomas
Medical Definition of oligoastrocytoma
: a brain tumor that is composed of glial tissue containing both oligodendrocytes and astrocytes and that occurs chiefly in the frontal and temporal lobes of the cerebrum — see mixed glioma
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