Importance of the surrounding colonic mucosa in distinguishing between hyperplastic and adenomatous polyps during acetic acid chromoendoscopy

Table 1 Relationship between the colon polyp and the pattern of colonic mucosa surrounding the polyp n (%)

	Linear and regular (n = 34)	Nodular and irregular (n = 16)	P value
Size of the polyp (mm, mean ± SD)	5.29 ± 2.18	4.75 ± 2.27	NS
Shape of the polyp			0.023
Sessile	20 (58.8)	15 (93.7)
Non-sessile	14 (41.2)	1 (6.3)
Location of the polyp			NS
Cecum	2 (5.9)	0 (0.0)
Ascending colon	5 (14.7)	2 (12.4)
Hepatic flexure	3 (8.8)	0 (0.0)
Transverse colon	1 (2.9)	1 (6.3)
Splenic flexure	0 (0.0)	1 (6.3)
Descending colon	4 (11.8)	1 (6.3)
Sigmoid colon	12 (35.3)	8 (50.0)
Rectum	7 (20.6)	3 (18.7)
Pathology			NS
Hyperplastic polyp	10 (29.4)	7 (43.8)
Adenomatous polyp	24 (70.6)	9 (56.2)

NS: Not significant.