Table 1

The number of sections, the total length of sections (mm) scrutinised, and the total number of crypts in asymmetrical and symmetrical fission found in seven colectomy specimens with extensive ulcerative colitis

CasesNo. sectionsTotal length scrutinised (mm)Total symmetric fission cryptsTotal asymmetric fission cryptsTotal symmetric-asymmetric fission crypts
111720
(25 to 120)
10477487
212328
(4 to 45)
41337378
311235
(1 to 50)
5129134
4181007
(25 to 90)
5538311384
511507
(25 to 70)
4246250
614657
(12 to 85)
1299300
712537
(20 to 82)
42611653
89
mean 12.7
(range 11 to 18)
3991; mean 570.1
(235 to 1007)
656
18.3%
2930
81.7%
3586
100%