Difference between revisions of "Urothelium"

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==Urothelial papilloma==
==Urothelial papilloma==
===General===
{{Main|Urothelial papilloma}}
*Very rare diagnosed.
**If the person has a history of a low grade papillary urothelial carcinoma... it is a low grade papillary urothelial carcinoma.
**These cases are a consensus diagnosis, i.e. you show it to a colleague... if they agree you can call it.
 
===Microscopic===
Features:<ref name=Ref_WMSP310>{{Ref WMSP|310}}</ref>
*Papillary fronds.
*Minimal branching or fusion.
*Cytological features of normal urothelium.
**Normal urothelium approx. 2x the size of stromal lymphocytes.<ref name=Ref_GUP161>{{Ref GUP|161}}</ref>
*No mitoses.
*Thickness < 7 cells.{{fact}}
 
DDx:
*[[Low grade papillary urothelial carcinoma]].
*[[PUNLMP]].


==Inverted urothelial papilloma==
==Inverted urothelial papilloma==
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