WHO classification of anal canal tumours

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
Secondary tumours
  • direct extension from adjacent organs: rectal, cervical, and prostate carcinomas

See also


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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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