Optical diagnosis of colorectal polyps using high-definition i-scan: An educational experience

Table 2 Endoscopic and pathologic characteristics of the colorectal polyps incorporated in our test set n (%)

Characteristic	Polyps
Total number of colorectal polyps	50
Location1
Proximal colon	25 (51.0)
Distal colon	24 (49.0)
Size1
Diminutive	32 (65.3)
Non-diminutive	17 (34.7)
Morphology1
Polypoid	29 (59.2)
Non-polypoid	20 (40.8)
Histopathology
Tubular adenoma	29 (58.0)
Tubulovillous adenoma	6 (12.0)
Carcinoma	1 (2.0)
Hyperplastic polyp	8 (16.0)
Sessile serrated adenoma/polyp	1 (2.0)
Other (i.e., inflammatory)	2 (4.0)
Normal tissue	3 (6.0)
Final histopathology
Non-adenomatous	14 (28.0)
Adenomatous	36 (72.0)
Image quality
Excellent	29 (58.0)
Less than excellent	21 (42.0)

¹Information was missing in 1 case.