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Author: Mikael Häggström [notes 1]

This article includes colostomies, and other surgical non-rectal connections between the intestine and the skin. It also includes "donuts", which are ring-shaped pieces of large bowel from a circular end-to-end stapling device.



On this resource, the following formatting is used for comprehensiveness:

  • Minimal depth
  • (Moderate depth)
  • ((Comprehensive))
Other legend

<< Decision needed between alternatives separated by / signs >>
{{Common findings / In case of findings}}
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Gross processing

For stoma and donuts:

  • Count the number of pieces and measure at least the maximum dimension of each.
  • Note any gross lesions.
  • Submit sections that include both mucosa and skin if detected.

Example report:

(A. Labeled -colostomy site donuts. The specimen is received in formalin and consists of) 3 {{donut-shaped}} fragments of tissue partly covered by mucosa, measuring from 1.5 up to 6.5 cm in maximum dimension. The mucosa displays no gross lesions. (The mucocutaneous junction is intact. Representative sections are submitted for microscopic examination in 3 cassettes.)

Microscopic evaluation

Exclude any incidental malignancy.

Example report:

( Donut, Excision:)
  • Normal colorectal wall
  • NEGATIVE for malignancy.


  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.

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