Spectrum of final pathological diagnosis of gastric adenoma after endoscopic resection

Table 3 Comparisons of histologic diagnoses n (%)

	LG	HG	EGC	NAL	Others	Total	Agreement	Discrepancy
Between local clinic biopsy and repeat biopsy
Adenoma	11 (68.8)	3 (18.8)	0 (0)	1 (6.3)	1 (6.3)	16 (100)
LG	51 (83.6)	4 (6.6)	2 (3.3)	4 (6.6)	0 (0)	61 (100)	51 (83.6)	10 (16.4)
HG	11 (35.5)	2 (6.5)	16 (51.6)	2 (6.5)	0 (0)	31 (100)	2 (6.5)	29 (93.5)
Total	73 (67.6)	9 (8.3)	18 (16.7)	7 (6.5)	1 (0.9)	108 (100)	53 (57.6)	39 (42.4)
Between local clinic and post procedure
Adenoma	60 (65.2)	14 (15.2)	6 (6.5)	11 (12.0)	1 (1.1)	92 (100)
LG	274 (71.7)	42 (11.0)	22 (5.8)	43 (11.3)	1 (0.3)	382 (100)	274 (71.7)	108 (28.3)
HG	22 (27.5)	12 (15.0)	44 (55.0)	2 (2.5)	0 (0)	80 (100)	12 (15.0)	68 (85.0)
Total	356 (64.3)	68 (12.3)	72 (13.0)	56 (10.1)	2 (0.4)	554 (100)	286 (61.9)	176 (38.1)
Between repeat forcep biopsy and post procedure
LG	52 (71.2)	1 (15.1)	6 (8.2)	3 (4.1)	1 (1.4)	73 (100)	52 (71.2)	21 (28.8)
HG	3 (33.3)	4 (44.4)	2 (22.2)	0 (0)	0 (0)	9 (100)	4 (44.4)	5 (45.6)
Adenocarcinoma	0 (0)	0 (0)	17 (94.4)	1 (5.6)	0 (0)	18 (100)	17 (94.4)	1 (5.6)
Benign lesion	3 (42.9)	0 (0)	2 (28.6)	2 (28.6)	0 (0)	7 (100)	2 (28.6)	5 (71.4)
Others	0 (0)	0 (0)	0 (0)	0 (0)	1 (100)	1 (100)	1 (100)	0 (0)
Total	58 (53.7)	15 (13.9)	27 (25.0)	6 (5.6)	2 (1.9)	108 (100)	76 (70.4)	32 (29.6)

LG: Low grade; HG: High grade; NAL: No adenomatous lesion; EGC: Early gastric cancer.