Difference between revisions of "Colon"
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==Microscopic evaluation== | ==Microscopic evaluation== | ||
+ | In a general screening, look for: | ||
+ | <gallery mode=packed> | ||
+ | File:Tubular adenoma of the colon.jpg|Hyperplasia and/or atypia ([[colorectal polyp]] with [[tubular adenoma]] pictured) | ||
+ | </gallery> | ||
+ | *[[Colitis]] | ||
+ | |||
+ | ===Microscopy report=== | ||
Example report in an unremarkable biopsy: | Example report in an unremarkable biopsy: | ||
{|class=wikitable | {|class=wikitable |
Revision as of 16:23, 28 September 2020
Author:
Mikael Häggström [note 1]
Contents
Presentations
Gross processing
More specific grossing is available for presentations above. For larger specimens (not biopsies):
- Identify segment of colon
- Measure length and variations in width
- Inspect the serosa- look for any perforations, adhesions, fistulas and exudate
- If perforation is present, try to probe it from the serosal surface
- Open longitudinally
- Semi-quantitate the number of diverticula – “numerous” if too many to count
- Look for for any mucosal lesions. Note any evidence of inflammation, hemorrhage, abscess, perforation or fistula
- Note the thickness of the wall
- Optionally, measure the mesentery
- Note any obvious mesenterial lymph nodes
- Sections to submit for microscopy:
- 2 sections of any perforation(s), one section of intact diverticulum, any mucosal lesions, any obvious lymph nodes.
- If there is no perforation: 3 sections of diverticulum.
Microscopic evaluation
In a general screening, look for:
Hyperplasia and/or atypia (colorectal polyp with tubular adenoma pictured)
Microscopy report
Example report in an unremarkable biopsy:
Colonic mucosa, negative for significant histopathologic changes. |
Notes
- ↑ 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.
Main page
References
Image sources