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

Table 2

Descriptive analysis of serrated lesions. The distribution of the serrated lesions according to their general aspects: the mean age, localization, and size and morphological characteristics.

		Sessile serrated adenoma (SSA)	Traditional serrated adenoma (TSA)
Mean age		62 ± 12.1	60.2 ± 16.6
Location	Proximal colon	21–95.4%	7–33.3%
	Distal colon and rectum	1–4.6%	13–61.9%
	No description	—	1–4.8%
Size	<10 mm	15–68.2%	12–57.1%
	10–20 mm	7–31.8%	5–23.8%
	>20 mm	—	1–4.8%
	No description	—	3–14.3%
Morphology	Sessile	13–59.1%	17–80.9%
	Superficially elevated	9–40.9%	1–4.8%
	Pedunculated	—	2–9.5%
	No description	—	1–4.8%