Clinicopathological Characteristics of Serrated Polyposis Syndrome in Korea: Single Center Experience

Table 1

Demographic data and clinicopathologic characteristics of patients with serrated polyposis syndrome.

Patient number	Sex	Age	Colonoscopy indication	Number of polyps	Pathological characteristics of polyps	Size of the largest polyp (mm)	Treatment method	Diagnostic criterion^*
1	M	59	Screening	>30	>20 HPs, 6 SSA/Ps, 8 TAs	25	ER	3
2	M	54	Screening	>30	>20 HPs, 1 SSA/P, 4 TAs	15	ER	3
3	M	50	Screening	>30	>20 HPs, 3 SSA/Ps, 2 TSAs, 4 TAs	20	ER	3
4	M	53	Positive FOBT	>20	>20 HPs, 2 SSA/Ps	15	ER	3
5	M	51	Screening	10	5 HPs, 4 SSA/Ps, 1 TSA	25	ER	1
6	M	58	Screening	17	5 HPs, 9 SSA/Ps, 3 TAs	15	ER	1
7	F	66	Anemia	>30	>20 HPs, 5 SSA/Ps, 3 TAs	20	ER	3
8	M	53	Screening	12	4 HPs, 5 SSA/Ps, 3 TAs	20	ER	1
9	M	35	Screening	6	2 HPs, 4 SSA/Ps	15	ER	1
10	M	72	Screening	20	6 HPs, 8 SSA/Ps, 6 TAs	30	ER	1
11	M	61	Screening	>30	>20 HPs, 4 SSA/Ps, 1 serrated adenocarcinoma	40	Surgery	3

Criterion 1: at least 5 serrated polyps proximal to the sigmoid colon with two or more of these being >10 mm; criterion 3: >20 serrated polyps of any size but distributed throughout the colon.
M: male; F: female; FOBT: fecal occult blood testing; HP: hyperplastic polyp; SSA/P: sessile serrated adenoma/polyp; TSA: traditional serrated adenoma; TA: tubular adenoma; ER: endoscopic resection.