Histological healing favors lower risk of colon carcinoma in extensive ulcerative colitis

Table 4 Features of 20 patients with high grade dysplasia or carcinoma of colon

Case	High grade dysplasia	Multiple sites of dysplasia	Low grade dysplasia	Colon cancer	Location of cancer
1	+	1	0	0	-1
2	+	1	0	0	-1
3	+	0	0	0	-1
4	+	0	0	+	Recto-sigmoid
5	+	1	0	+	Sigmoid
6	+	1	0	+	Sigmoid
7	+	1	0	+	Sigmoid
8	0	0	0	+	Distal transverse
9	0	1	1	+	Ileo-Anal pouch
10	+	1	0	+	Sigmoid
11	0	0	0	+	Sigmoid
12	0	0	0	+	Prox transverse
13	+	1	1	+	Cecum
14	0	0	1	+	Ascending
15	0	0	0	+	Descending
16	+	0	1	+	Recto-sigmoid
17	+	1	1	+	Rectum
18	0	0	0	+	Sigmoid
19	0	0	0	+	Rectum
20	+	0	0	+	Sigmoid
Totals	12	9	5	17

¹High grade dysplasia at multiple sites, not cancer.