PTPRC and neoplasm: Among PoVB draws, there was a significant positive correlation between tumor volume and incidence of total rare events (p-value = 0.047), total rare cells (p-value = 0.01), DAPI|Vim (p-value = 0.01), and DAPI|CK|Vim|CD45/CD31 (p-value = 0.02) cells.