Difference between revisions of "Esophagus"

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185 bytes added ,  06:28, 2 December 2011
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===Microscopic===
===Microscopic===
Features:
Features:
*Nuclear changes.
#Nuclear changes.
**Nuclear hyperchromatism.
#*Nuclear hyperchromatism.
**Nuclear crowding.
#*Nuclear crowding.
**Cigar-shaped (ellipical) nuclei.
#*Cigar-shaped (ellipical) nuclei.
*Nuclear changes present at surface (not only in gland crypts).<ref>GAG. January 2009.</ref>
#Nuclear changes present at surface (not only in gland crypts).<ref>GAG. January 2009.</ref>
**If changes are present at the base but ''not'' at the luminal surface -- it "matures" and is ''not'' dysplasic.
#*If changes are present at the base but ''not'' at the luminal surface -- it "matures" and is ''not'' dysplasic.
#Lack of desmoplasia.<ref name=Ref_GI54>{{Ref GI|54}}</ref>
#*Stromal fibrotic reaction to tumour.


Notes:  
Notes:  
*Changes similar to those see in colorectal tubular adenomas.
*Changes similar to those see in colorectal tubular adenomas.
*Presence of goblet cells is mildly reassuring its not dysplasia.<ref>GAG. January 2009.</ref>
*Presence of goblet cells is mildly reassuring its not dysplasia.<ref>GAG. January 2009.</ref>
*Desmoplasia present = invasive adenocarcinoma.<ref name=Ref_GI54>{{Ref GI|54}}</ref>


Image:
Image:
48,830

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