Histochemical studies on intestinal metaplasia adjacent to gastric cardia adenocarcinoma in subjects at high-incidence area in Henan, north China

Table 1 Criteria for IM classification based on histology and histochemistry

Types of IM	Histology			Histochemical staining
	Structure of glands	Columnar cell	Paneth cell	AB	PAS	HID
Complete	Regular	-	+	+	-	-
Incomplete	Irregular	+	-	+	+	-
Complete colonic	Regular	-	-	+	-	+
Incomplete colonic	Irregular	+	-	+	+	+
Incomplete gastric	Irregular	+	-	-	+	-

Revised from Ref.[11].

Table 2 Prevalence and distribution of different types of IM in tissues adjacent to GCA and GC in Linzhou, Henan Province, China

	Incomplete IM
Type	Complete IM	Small intestinal	Colonic
	n (%)	n (%)	n (%)
GCA
(44.90%, 22/49)	1/22 (4.55)	7/22 (31.82)	14/22 (63.64)
GC
(80.64%, 75/93)	55/75 (73.33)	4/75 (5.33)	16/75 (21.33)