Comparison between heterogeneity within primary and metastatic specimens, estimated using a composite median absolute deviation (MAD) across all the markers: Each patient is represented by a dot. Dots above the diagonal represent patients with larger heterogeneity in the primary tumors, while dots below the diagonal represent greater heterogeneity in the corresponding metastatic tumors. The central diagonal grey line represents identical heterogeneity in primary and metastatic tumors. The Wilcoxon paired, two-sided signed rank test shows no significant difference between the heterogeneities of the primary and matched metastatic tumors (p = 0.38).
Aziz et al. BMC Clinical Pathology 2013 13:3 doi:10.1186/1472-6890-13-3