Spectrum of final pathological diagnosis of gastric adenoma after endoscopic resection

Table 1 The baseline characteristics and endoscopic features of referred adenomas n (%)

No. of cases	554
No. of patients	534
Age (yr), mean ± SD	62.1 ± 9.6
Male:female	372:182 (2.04:1)
Histologic grade
Adenoma (no grading)	92 (16.6)
Low grade	382 (69.0)
High grade	80 (14.4)
No. of referring hospitals	116
No. of Bx, mean ± SD	2.24 ± 1.75
Mean duration between biopsy and procedure	40.7 d
Information of endoscopic photo	449 (81.0)
Size (cm), mean ± SD	1.2 ± 0.8
Morphologic type
Elevated	275 (49.6)
Flat	206 (37.2)
Depressed	67 (12.1)
Y-IV	6 (1.1)
Color
Whitish	332 (59.9)
Reddish	94 (17.0)
Mixed or undetermined	128 (23.1)
Longitudinal location
Antrum	298 (53.8)
Angle	57 (10.3)
Body	191 (34.4)
High	12 (2.2)
Middle	55 (9.9)
Lower	124 (22.4)
Cardia or fundus	8 (1.5)
Circular location
Anterior	123 (22.2)
Posterior	119 (21.5)
Lesser curvature	193 (34.8)
Greater curvature	113 (20.4)

Bx: Biopsy; Y-IV: Yamada type IV.