Fig. 2: ERBB2 amplification detected by NGS.

A Copy number (CN) plot of all chromosomes for a case of serous carcinoma with several copy number gains and losses, including ERBB2 amplification (red circle). The y-axis is the log2 ratio of the number of reads in the tumor sample compared to a set of normals. B ERBB2 amplification (CN = 13).