Oligodendrogliomas are rare primary brain tumors with variable patient outcomes which are not always adequately accounted for by clinical or pathological variables. The present study evaluated the prognostic implications of chromosome 1p and 19q status in a set of 23 low grade oligodendrogliomas (OGD II), and correlated the results with patient outcome. Loss of heterozygosity (LOH) and fluorescent in situ hybridization (FISH) analyses, the most widely used standard procedures, were used.
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