Duodenal Chromogranin A Cell Density as a Biomarker for the Diagnosis of Irritable Bowel Syndrome

Figure 2

Duodenal CgA-immunoreactive cells in (a) a control subject, (b) a patient with IBS-D, (c) a patient with IBS-M, and (d) a patient with IBS-C.

(a)

(b)

(c)

(d)