comparison of symptoms with respect to site of lesion

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The symptoms of colorectal cancer vary with respect to site of the tumour. Some general features associated with tumours are:

  • right sided tumours - often are painful, palpable mass in 70%, rectal bleeding in 20%
  • left sided tumours - change in bowel habit in 60%, palpable mass in 40%, pain less frequent feature
  • rectal - change in bowel habit commonest presenting feature, bleeding in 60%, rarely associated with pain

Last reviewed 01/2018