Figure 2

Mast cell in painful and nonpainful chronic pancreatitis A Histology of autopsy specimen. Giemsa staining of autopsy specimens of controls and of patients with chronic pancreatitis (CP) both with and without pain. Large images represent 40× magnification while the inserts are 100× magnifications of mast cells. Scale bars represent 20 μM. Arrows point at mast cells. B Autopsy specimens of patients with a history of chronic abdominal pain contained a significantly higher number of mast cells as compared to specimens of patients with chronic pancreatitis without a history of abdominal pain (34.1 +/- 7 vs 8.6 +/- 2.9; P < 0.01) or to control specimens (34.1 +/-7 vs 6.6 +/- 1.4; P < 0.01).