Hughes’ classification of perianal lesions in Crohn’s

  • Primary lesions
    • Anal fissure
    • Ulcerated oedematous pile
    • Cavitating ulcer
    • Aggressive ulceration
  • Secondary lesions
    • Skin tags
    • Anal/rectal strictures
    • Perianal abscess/fistula
    • Anovaginal/rectovaginal fistula
    • Carcinoma
  • Incidental lesions
    • Piles
    • Perianal abscess or fistula
    • Skin tags
    • Cryptitis
    • Hidradenitis suppurativa