Difference between revisions of "Colon"
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==Gross processing== | ==Gross processing== | ||
− | More specific grossing is available for presentations above. | + | More specific grossing is available for presentations above. For larger specimens (not biopsies): |
*Identify '''segment''' of colon | *Identify '''segment''' of colon | ||
*Measure '''length''' and variations in '''width''' | *Measure '''length''' and variations in '''width''' | ||
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:*2 sections of any perforation(s), one section of intact diverticulum, any mucosal lesions, any obvious lymph nodes. | :*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. | :*If there is no perforation: 3 sections of diverticulum. | ||
+ | |||
+ | ==Microscopic evaluation== | ||
+ | Example report in an unremarkable biopsy: | ||
+ | {|class=wikitable | ||
+ | | Colonic mucosa, negative for significant histopathologic changes. | ||
+ | |} | ||
+ | |||
{{Bottom}} | {{Bottom}} |
Revision as of 11:45, 1 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
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