Last revised by David Luong on 27 Jul 2021

Proctitis refers to acute or chronic inflammation of the lining of the rectum (rectal mucosa). If involvement extends to the rest of the wider colon, it is then termed proctocolitis.

Proctitis may have a range of clinical symptoms including: 

Proctitis may result from a number of pathologies:

Usually tends to show diffuse thickening of the rectum.

Possible differential considerations include:

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Cases and figures

  • Case 1: radiation proctitis
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  • Case 2: CMV proctitis
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  • Case 3
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