Table 2.
Clinical data for patients without Crohn’s disease
| Patient No | Disease | Fistula | |
| Type | Localisation | ||
| 1 | Appendiceal abscess | Internal | Appendicovesical |
| 2 | Diverticular disease | External | Enterocutaneous |
| 3 | Perianal abscess | External | Perianal |
| 4 | Anal cancer | External | Enterocutaneous |
| 5 | Ileal abscess | Internal | Ileum |
| 6 | Natal abscess | External | Perianal |
| 7 | Natal abscess | External | Perianal |
| 8 | Haemorrhoids | External | Perianal |
| 9 | Natal abscess | External | Perianal |
| Zymographic studies | |||
| 10 | Congenital anal atresia | External | Retrovaginal |
| 11 | Anal canal anastomosis | External | Perianal |
| 12 | Natal abscess | External | Perianal |
| 13 | Ileal abscess | External | Enterocutaneous |