Figure 11.

Simplistic illustration showing that regardless of tumor burden, patients with colorectal cancer had significantly more number of circulating tumor cells (CTCs) detected than patientswith pancreas cancer (CRC CTCs Mean: 15.8 per 7.5 ml; Median: 7.5 per 7.5 ml PC Mean: 4.2 per 7.5 ml; Median: 3 per 7.5 ml). Similarly, while at least 10 CTCs were detected in 16 of 90 (17.8%) CRC samples, only 1 of 23 (4.3%) patients with pancreas cancer had more than 10 CTCs detected; showing that biology and tissue type also matter for CTCs.