Colorectal cancers in ulcerative colitis from a low-prevalence area for colon cancer

Table 2 Characteristics of colorectal cancer in ulcerative colitis

No.	Age (yr)	Sex	Extent of disease	Duration1,yr	Location of CRC
1	59	M	Ext colitis	24	Recto-sigmoid
2	47	F	Left-sided colitis	10	Left colon
3	51	M	Ext colitis	6	Ascending, transverse, descending colon (multifocal)
4	42	M	Ext colitis	7	Rectum
5	64	F	Ext colitis	13	Ascending colon
6	41	F	Ext colitis	17	Descending colon
7	40	F	Left-sided colitis	6	Rectum
8	46	F	Ext colitis	20	Rectum
9	67	F	Left sided	27	Rectum
10	49	M	Ext colitis	22	Rectum
11	56	M	Ext colitis	17	Rectum
12	51	F	Ext colitis	13	Ascending colon

¹Duration from onset of ulcerative colitis to detection of CRC. Ext: Extensive colitis; CRC: Colorectal cancer.