Influence of SCENIC recommendations on terminology used for histopathologic diagnosis of inflammatory bowel disease-associated dysplasia

Table 3 Histopathologic diagnoses of dysplastic lesions on random endoscopic biopsies from ulcerative colitis patients during pre-SCENIC (2012-2014) and post-SCENIC (2016-2018) periods

Histopathologic diagnosis	No. of cases	Multiple or extensive	Comment
			No. of cases	Favor sporadic adenoma	Favor IBD dysplasia	Cannot distinguish
Pre-SCENIC
LGD	13	5	3		2	1
LGD, villous type	1	1	1			1
Low-grade adenomatous change	1	0	1	1
Low-grade villous dysplasia	1	1	0
HGD	1	1	0
Total	17	8	5
Post-SCENIC
LGD	12	7	3		21	12
LGD/TA	2	1	0
HGD	2	1	0
Total	16	9	3

¹Diagnosed in 2016 and 2017.

²Diagnosed in 2016.

SCENIC: Surveillance for Colorectal Endoscopic Neoplasia Detection and Management in Inflammatory Bowel Disease Patients; UC: Ulcerative colitis; IBD: Inflammatory bowel disease; LGD: Low-grade dysplasia; HGD: High-grade dysplasia; TA: Tubular adenoma.