Table 2.

Clinicopathological characteristics of the 65 longitudinally observed polyps per growth category.

	Grown	Stable	Regressed
All polyps (n = 65)	n = 31	n = 27	n = 7
Location
Proximal	16 (52%)	11 (41%)	5 (71%)
Distal	15 (48%)	16 (59%)	2 (29%)
Morphology
Sessile	16 (52%)	14 (52%)	6 (86%)
Pedunculated	9 (29%)	11 (41%)	1 (14%)
Flat	6 (19%)	2 (7%)	0
Adenomas (n = 56)	n = 27	n = 23	n = 6
Histology
Tubular	20 (74%)	21 (91%)	6 (100%)
Tubullovillous	7 (26%)	2 (9%)	0
Villous	0	0	0
Dysplasia
Low-grade	27 (100%)	23 (100%)	6 (100%)
High-grade	0	0	0
Serrated polyps (n = 9)	n = 4	n = 4	n = 1
Histology
Sessile serrated	1 (25%)	0	0
Hyperplastic	3 (75%)	4 (100%)	1 (100%)
Dysplasia
Absent	4 (100%)	4 (100%)	1 (100%)
Present	0	0	0