|
|
Line 334: |
Line 334: |
|
| |
|
| ==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== |