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Difference between revisions of "Gastrointestinal tract polyps"
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Gastrointestinal tract polyps (view source)
Revision as of 16:54, 18 March 2011
, 16:54, 18 March 2011→Tabular comparison of colonic polyps: more
m (→Overview: tweak) |
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=Tabular comparison of colonic polyps= | =Tabular comparison of colonic polyps= | ||
==Overview== | ==Overview in a table== | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 89: | Line 89: | ||
| moderate inflammation is normal | | moderate inflammation is normal | ||
| microscopic colitis, colonic spirochetes, microsporidiosis | | microscopic colitis, colonic spirochetes, microsporidiosis | ||
| | | [http://www.pathology.med.ohio-state.edu/paxit/deptbase/Paxit/Images/10534/PAXIT032.JPG Normal - low mag. (ohio-state.edu)] | ||
|- | |- | ||
| Hyperplastic polyp | | Hyperplastic polyp | ||
| Line 100: | Line 100: | ||
|- | |- | ||
| Traditional adenomas | | Traditional adenomas | ||
| nuclear hyperchromasia & pseudostratification/crowding at the surface, usu. polypoid - on a stalk, usu. left colon | | nuclear hyperchromasia & pseudostratification / crowding at the surface, usu. polypoid - on a stalk, usu. left colon | ||
| decreased goblet cells | | decreased goblet cells | ||
| common / premalignant | | common / premalignant | ||
| Line 110: | Line 110: | ||
| basal crypt dilation & serration | | basal crypt dilation & serration | ||
| boot-shaped crypts, horizontal crypts, branching crypts | | boot-shaped crypts, horizontal crypts, branching crypts | ||
| uncommon / | | uncommon / pre-malignant | ||
| AKA sessile serrated polyp | | AKA sessile serrated polyp | ||
| hyperplastic polyp | | hyperplastic polyp | ||
| Line 135: | Line 135: | ||
| loss of mucosa adjacent to pseudopolyp | | loss of mucosa adjacent to pseudopolyp | ||
| uncommon / seen in IBD, increased risk of malignancy | | uncommon / seen in IBD, increased risk of malignancy | ||
| only seen in IBD; Dx implies IBD | | only seen in [[IBD]]; Dx implies IBD | ||
| juvenile polyp | | juvenile polyp | ||
| Image | | Image | ||
| Line 143: | Line 143: | ||
| tree-like growth pattern | | tree-like growth pattern | ||
| very rare / syndromic; assoc. with cancer | | very rare / syndromic; assoc. with cancer | ||
| PJP not | | PJP not pre-malignant lesion in itself; see ''[[Peutz-Jeghers syndrome]]'' | ||
| normal | | normal, classically in the small bowel | ||
| [http://commons.wikimedia.org/wiki/File:Peutz-Jeghers_syndrome_polyp.jpg PJP - low mag. (WC)] | | [http://commons.wikimedia.org/wiki/File:Peutz-Jeghers_syndrome_polyp.jpg PJP - low mag. (WC)] | ||
|} | |} | ||