Figure 2.
10q loss of heterozygosity (LOH) in gliomas. (A) 23.6% of grade II oligodendrogliomas had 10q LOH vs. 34.6% of grade III oligodendrogliomas (p = 0.40 by Mann-Whitney test). (B) When either a grade II or grade III oligodendroglioma was called 1p/19q-codeleted by fluorescence in situ hybridization (FISH), concordance with PCR-based 1p/19q microsatellite LOH analysis was much less likely if 10q was also deleted (p < 0.0001, n = 76). (C) If an oligodendroglioma was 1p/19q-intact by FISH, 10q status had no bearing on whether the FISH result would be concordant with PCR-based 1p/19q microsatellite analysis (p = 0.41, n = 22).