Figure 3From: Chromogranin A is a reliable serum diagnostic biomarker for pancreatic neuroendocrine tumors but not for insulinomas Diagnostic accuracy of CgA in PNETs. Figure 3 A ROC curves of CgA levels in patients with insulinomas (n = 57) and in patients with non-insulinoma PNETs (Figure 3 B, n = 32) versus healthy participants (n = 86). AUC: the area under the curve.Back to article page