Table 4 Comparison of POCS findings in IgG4-SC patients based on the stricture site
| Â | Extrapancreatic | Intrapancreatic | Â |
|---|---|---|---|
(n = 10) | (n = 9) | p value | |
Mucosal surface (smooth: irregular) | 8: 2 | 9: 0 | 0.474 |
Dilated vessels (present: absent) | 9: 1 | 2: 7 | 0.006 |
 Tortuosity (present: absent) | 7: 2 | 2: 0 | 1.000 |
 Abrupt caliber alteration (present: absent) | 2: 7 | 0: 2 | 1.000 |
 Disruption (present: absent) | 1: 8 | 0: 2 | 1.000 |
Easily bleeding (present: absent) | 0: 10 | 0: 9 | 1.000 |