Types and Patterns of Colonic Polyps Encountered at a Tertiary Care Center in a Developing Country in South Asia

Table 2

Histology of polyps (all polyps considered).

		Cecum	Ascending colon	Transverse colon	Descending colon	Sigmoid colon	Rectum	Anal canal	Frequency	Percentage
Neoplastic	Tubulovillous adenoma	2	3	9	8	15	25	1	63	33.5
	Tubular adenoma	2	4	7	4	11	14	4	46	24.5
	Cancerized adenoma	0	0	1	1	2	3	0	7	3.7
	Villous adenoma	0	1	2	0	1	2	0	6	3.2
	Serrated adenoma	0	0	0	1	1	3	0	5	2.7
	Adenocarcinoma	0	0	0	0	0	2	0	2	1.1
Nonneoplastic	Hyperplastic polyp	2	2	6	3	9	7	3	32	17.0
	Normal mucosa	2	0	0	3	2	3	5	15	8.0
	Hamartomatous polyps	0	1	1	1	0	2	0	5	2.7
	Juvenile polyposis	0	0	1	2	1	0	0	4	2.1
	Inflammatory polyps	0	0	0	0	2	1	0	3	1.6
	Total	8	11	26	23	43	63	14	188	100
	Percentage	4.3	5.9	13.8	12.2	22.9	33.5	7.4	100