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An introduction to gastrointestinal pathology (view source)
Revision as of 19:33, 13 May 2010
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==Normal== | ==Normal== | ||
Layers of the alimentary canal:<ref>[http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Oral/Oral.htm]</ref><ref>[http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Oral/Images/gitplan.gif]</ref> | Layers of the alimentary canal:<ref>[http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Oral/Oral.htm]</ref><ref>[http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Oral/Images/gitplan.gif]</ref> | ||
* | *Mucosa (epithelium, lamina propria, muscularis mucosa). | ||
* | *Submuscosa and submucosal plexus (or Meissner's plexus). | ||
* | *Muscularis externa (inner longitudinal, myenteric plexus (or Auerbach's plexus) outer circumferential). | ||
* | *Adventitia (if retroperitoneal), serosa (if intraperitoneal). | ||
===Bowel=== | ===Bowel=== | ||
[[Small bowel]] | [[Small bowel]]: | ||
*Villi - should see three good ones in a normal biopsy. | *Villi - should see three good ones in a normal biopsy. | ||
*Crypts. | *Crypts. | ||
*Paneth cells. | *Paneth cells. | ||
[[Duodenum]] | [[Duodenum]]: | ||
*Small bowel (as above). | *Small bowel (as above). | ||
*Submucosal glands (Brunner's glands). | *Submucosal glands (Brunner's glands). | ||
Large bowel vs. small bowel | Large bowel vs. small bowel: | ||
*Small intestine. | *Small intestine. | ||
**Villi (key feature). | **Villi (key feature). | ||
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==Small bowel== | ==Small bowel== | ||
{{main|Small bowel}} | {{main|Small bowel}} | ||
The part of the GI tract pathology mostly forgot. | The part of the GI tract that pathology has mostly forgot. | ||
===Duodenum=== | ===Duodenum=== | ||
{{main|Duodenum}} | {{main|Duodenum}} | ||
Commonly biopsied. | Commonly biopsied. Celiac... cancer... giardia? | ||
==Gallbladder== | ==Gallbladder== | ||
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==Colon== | ==Colon== | ||
{{main|Colon}} | {{main|Colon}} | ||
Includes discussion of the [[rectum]]. | Includes discussion of the [[rectum]] and IBD. | ||
==Appendix== | ==Appendix== | ||
| Line 65: | Line 65: | ||
==See also== | ==See also== | ||
*[[Introduction]] | *[[Introduction]]. | ||
==References== | ==References== | ||