Prognostic values of chromosome 18q microsatellite alterations in stage II colonic carcinoma

Figure 1 Representative examples showing homozygosity and heterozygosity in normal tissues and loss of heterozygosity and microsatellite instability in tumor tissues. A: Normal sample shows homozygosity; B: Normal sample shows heterozygosity; C: Tumor sample shows loss of heterozygosity; D: Tumor sample shows microsatellite instability.