Retrospective Study
Copyright ©The Author(s) 2017.
World J Gastroenterol. Sep 14, 2017; 23(34): 6281-6286
Published online Sep 14, 2017. doi: 10.3748/wjg.v23.i34.6281
Table 1 Characteristics of colon polyps in the exam n (%)
Number
Size
≤ 5 mm14 (23.3)
5 < and ≤ 10 mm32 (53.4)
≥ 10 mm14 (23.3)
Type
Ip14 (23.3)
Isp9 (15.0)
Is19 (31.7)
IIa16 (26.6)
IIb0 (0.0)
IIc1 (1.7)
III1 (1.7)
Location
Rectum5 (8.3)
Sigmoid colon24 (40.0)
Descending colon5 (8.3)
Transverse colon13 (21.7)
Ascending colon11 (18.4)
Cecum2 (3.3)
Histology
TA with LGD32 (53.3)
TA with HGD3 (5.0)
VTA with LGD2 (3.3)
VTA with HGD1 (1.7)
Adenocarcinoma4 (6.7)
Chronic colitis13 (21.7)
Hyperplastic polyp3 (5.0)
Inflammatory polyp2 (3.3)
Table 2 Difference in assessment of polyp morphology per polyp n (%)
Pre-testPost-testFollow-up test
Number of polyps
One category per one question
Ip9 (15.0)8 (13.3)12 (20.0)
Isp6 (10.0)3 (5.0)0 (0.0)
Is0 (0.0)6 (10.0)3 (5.0)
IIa0 (0.0)11 (18.3)6 (10.0)
Total15 (25.0)28 (46.7)21 (35.0)
Two categories per one question
Ip-Isp6 (10.0)8 (13.3)5 (8.3)
Isp-Is7 (11.7)7 (11.7)8 (13.3)
Is-IIa24 (40.0)12 (20.0)20 (33.3)
IIa-IIc0 (0.0)1 (1.7)1 (1.7)
IIc-III1 (1.7)1 (1.7)1 (1.7)
Total38 (63.3)29 (48.3)35 (58.3)
Three categories per one question
Ip-Isp-Is1 (1.7)1 (1.7)4 (6.7)
Isp-Is-IIa5 (8.3)1 (1.7)0 (0.0)
Is-IIa-IIc1 (1.7)0 (0.0)0 (0.0)
IIa-IIb-IIc0 (0.0)1 (1.7)0 (0.0)
Total7 (11.7)3 (5.0)4 (6.7)