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Difference between revisions of "Gastrointestinal tract polyps"
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Gastrointestinal tract polyps (view source)
Revision as of 02:41, 20 June 2010
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'''Intestinal polyps''' are often the bread & butter of a GI pathologists workload. Some of 'em are benign... some pre-malignant... some malignant... some weird. | '''Intestinal polyps''' are often the bread & butter of a GI pathologists workload. Some of 'em are benign... some pre-malignant... some malignant... some weird. | ||
Overview - there are four basic types:<ref>{{Ref PBoD|856}}</ref> | Overview - there are four basic types:<ref name=Ref_PBoD856>{{Ref PBoD|856}}</ref> | ||
*Hyperplastic - harmless, most common - 90% of all colonic polyps.<ref>{{Ref PBoD|858}}</ref> | *Hyperplastic - harmless, most common - 90% of all colonic polyps.<ref name=Ref_PBoD858>{{Ref PBoD|858}}</ref> | ||
*Hamartomatous - weriod stuff, syndromic things. | *Hamartomatous - weriod stuff, syndromic things. | ||
*Inflammatory - think [[inflammatory bowel disease]], aka ''pseudopolyps''. | *Inflammatory - think [[inflammatory bowel disease]], aka ''pseudopolyps''. | ||
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==Hyperplastic polyp== | ==Hyperplastic polyp== | ||
*Most common colonic polyp (90% of all colonic polyps<ref | *Most common colonic polyp (90% of all colonic polyps<ref name=Ref_PBoD858/>). | ||
===Microscopy=== | ===Microscopy=== | ||
Features:<ref | Features:<ref name=Ref_PBoD858/> | ||
*Irregular crypt architecture - tortuosity. | *Irregular crypt architecture - tortuosity. | ||
*Serrated epithelial cells (at the surface of the gland). | *Serrated epithelial cells (at the surface of the gland). | ||