A Retrospective Analysis of Colorectal Serrated Lesions from 2005 to 2014 in a Single Center: Importance of the Establishment of Diagnostic Patterns

Table 1

Histological type, total number of each lesion (frequency), and percentage of the lesions found via colonoscopies along with distribution of all the histological types of only serrated lesions.

	n	%
Histological type
Tubular adenoma	2085	59.7
Hyperplastic polyp	1089	31.2
Tubulovillous adenoma	217	6.2
Adenocarcinoma	46	1.3
Sessile serrated adenoma	22	0.6
Traditional serrated adenoma	21	0.6
Villous adenoma	14	0.4
Total	3494	100
Serrated lesions
Hyperplastic polyp	1089	96.2
Sessile serrated adenoma	22	1.94
Traditional serrated adenoma	21	1.86
Total	1132	100