Difference between revisions of "Mechanical bowel perforation"
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'''Mechanical bowel perforation''' is a relatively uncommon occurrence. | '''Mechanical bowel perforation''' is a relatively uncommon occurrence. | ||
==General== | |||
*Uncommon. | *Uncommon. | ||
| Line 17: | Line 17: | ||
*Ischemia. | *Ischemia. | ||
==Gross== | |||
*Fibrinous exudate. | *Fibrinous exudate. | ||
*Bowel wall thickening, focal. | *Bowel wall thickening, focal. | ||
*Perforation - may or may not be obvious. | *Perforation - may or may not be obvious. | ||
==Microscopic== | |||
Features: | Features: | ||
*Microabscess formation - esp. at serosal aspect. | *Microabscess formation - esp. at serosal aspect. | ||
Revision as of 18:45, 21 February 2014
Mechanical bowel perforation is a relatively uncommon occurrence.
General
- Uncommon.
Causes:[1]
- Iatrogenic, i.e. complication of a surgery.
- Typically elderly.
- Trauma, e.g. gunshot wound, sharp force trauma.
- Typically younger people that were "minding their own business".
Other causes of perforation non-mechanical:[1]
- Crohn's disease.
- Diverticular disease.
- Foreign body.
- Malignancy.
- Ischemia.
Gross
- Fibrinous exudate.
- Bowel wall thickening, focal.
- Perforation - may or may not be obvious.
Microscopic
Features:
- Microabscess formation - esp. at serosal aspect.
- Serositis.
DDx:
- Malignancy:
- Signet ring cell carcinoma.
- Metastatic carcinoma.
- Other causes of small bowel obstruction.