Perianal inflammation
Perianal inflammation occurs commonly in Crohn's disease. Conditions that may result from perianal inflammation include:
- recurrent perianal abscesses
- Crohns 'piles' - these are pale and oedematous. This is in contrast to the appearance of ordinary haemorrhoids
- anterolateral anal fissures - usually fissures are posterior anal fissures.
Multiple anal fistulae may develop in Crohn's disease. They may be so numerous as to cause a so-called 'pepper pot perineum' or 'watering can perineum'. This complication is, paradoxically, more associated with small bowel disease than large bowel disease.
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