Table 2 Comparison of POCS findings between IgG4-SC and ECC

POCS findings

(n = 19)

(n = 53)

P value

Mucosal surface (smooth: irregular)

17: 2

9: 44

<  0.001

Dilated vessels (present: absent)

11: 8

42: 11

0.070

 Tortuosity (present: absent)

9: 2

35: 7

1.000

 Abrupt caliber alteration (present: absent)

2: 9

36: 6

<  0.001

 Disruption (present: absent)

1: 10

25: 17

0.005

Easily bleeding (present: absent)

0: 19

26: 27

<  0.001