The SCAR_Mutation module allows users to screen for genome mutations in each cancer type and interactively modulate visual representation based on the Circos platform. The Circos-style plot shows a number of layers, starting from the outer layer representing colour and size distinguished chromosomes, moving clockwise from chromosome 1 to 22, then X and Y. Inside the chromosomes ring, you can see a line representation of copy number mutations. When expanded (by clicking a chromosome), more details on the precise copy number at specific locations are revealed. Hover the bars for further details.