Figure 4. Associations of vessel size, vessel density or perivascular status between primary tumor and distant metastases.

Perivascular PDGFR-β and desmin status in primary tumor tissue and in metastatic tissue showed significant correlations. Notably, vessel density, vessel size and perivascular α-SMA did not show this correlation. Horizontal axes show tumor tissue data, vertical axes show metastatic tissue data. Spearman rank test used for statistical analysis.