Figure 5. Expression Array Data Comparison of Two Cases. Normalized GeneChip Human U133 Plus 2.0 expression array data comparing Case 2 and Case 3 for mRNA expression in the 25 most highly upregulated genes and 20 most down-regulated genes identified in a previous study of monosomy 3 choroidal melanomas relative to chromosome 6p gain choroidal melanomas [11]. Insufficient RNA was available for analysis of Case 1.