WHO classification of anal canal tumours

Dr Amir Rezaee et al.

The World Health Organisation classifies anal canal neoplasms into intraepithelial neoplasms and invasive neoplasms which are further divided to epithelial and non-epithelial tumours and secondary lesions:

Epithelial tumours
Non-epithelial tumours
Carcinoid tumours
Melanoma 
Secondary tumours
  • direct extension from adjacent organs: rectal, cervical, and prostate carcinomas

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Article Information

rID: 50205
Synonyms or Alternate Spellings:
  • WHO classification of anal canal tumors
  • Anal canal tumors: WHO classificaion
  • Anal canal tumours: WHO classificaion

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