Difference between revisions of "Urothelium"

Urothelium (view source)

691 bytes added , 16:58, 19 April 2012

48,733

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 =Benign urothelial lesions=
-==Brunn nests==
+==von Brunn nests==
-Microscopic:<ref name=Ref_PBoD1028>{{Ref PBoD|1028}}</ref>
+===General===
-*Benign inbudding nests of urothelium.
+*Benign.
-**Should lead to consideration of "inverted papilloma".
+===Microscopic===
+Features:<ref name=Ref_PBoD1028>{{Ref PBoD|1028}}</ref>
+*Benign in budding nests of urothelium.
+Note:
+*Nests should '''not''' extend into the muscularis propria.
+DDx:
+*[[Urothelial carcinoma]], nested variant.<ref name=pmid12960809>{{Cite journal  | last1 = Volmar | first1 = KE. | last2 = Chan | first2 = TY. | last3 = De Marzo | first3 = AM. | last4 = Epstein | first4 = JI. | title = Florid von Brunn nests mimicking urothelial carcinoma: a morphologic and immunohistochemical comparison to the nested variant of urothelial carcinoma. | journal = Am J Surg Pathol | volume = 27 | issue = 9 | pages = 1243-52 | month = Sep | year = 2003 | doi =  | PMID = 12960809 }}</ref>
+*[[Inverted urothelial papilloma|Inverted papilloma]].
+===IHC===
+Features:<ref name=pmid12960809/>
+*p53 -ve.
+*MIB-1 <3%.
 ==Cystitis cystica==