Difference between revisions of "Urothelial papilloma"
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'''Urothelial papilloma''' is a rare benign lesion of the [[urothelium]]. | |||
==General== | |||
*Rare.<ref name=pmid24300727 >{{Cite journal | last1 = Al Bashir | first1 = S. | last2 = Yilmaz | first2 = A. | last3 = Gotto | first3 = G. | last4 = Trpkov | first4 = K. | title = Long term outcome of primary urothelial papilloma: a single institution cohort. | journal = Pathology | volume = 46 | issue = 1 | pages = 37-40 | month = Jan | year = 2014 | doi = 10.1097/PAT.0000000000000029 | PMID = 24300727 }}</ref> | |||
*Males > females (1.9:1).<ref name=pmid24300727/> | |||
Notes: | |||
*If the person has a history of a low grade papillary urothelial carcinoma... it is likely 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]]. | |||
==See also== | |||
*[[Urothelium]]. | |||
*[[PUNLMP]]. | |||
==References== | |||
{{Reflist|2}} | |||
[[Category:Diagnosis]] | [[Category:Diagnosis]] | ||
Revision as of 04:18, 25 April 2015
Urothelial papilloma is a rare benign lesion of the urothelium.
General
Notes:
- If the person has a history of a low grade papillary urothelial carcinoma... it is likely 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:[2]
- Papillary fronds.
- Minimal branching or fusion.
- Cytological features of normal urothelium.
- Normal urothelium approx. 2x the size of stromal lymphocytes.[3]
- No mitoses.
- Thickness < 7 cells.[citation needed]
DDx:
See also
References
- ↑ 1.0 1.1 Al Bashir, S.; Yilmaz, A.; Gotto, G.; Trpkov, K. (Jan 2014). "Long term outcome of primary urothelial papilloma: a single institution cohort.". Pathology 46 (1): 37-40. doi:10.1097/PAT.0000000000000029. PMID 24300727.
- ↑ Humphrey, Peter A; Dehner, Louis P; Pfeifer, John D (2008). The Washington Manual of Surgical Pathology (1st ed.). Lippincott Williams & Wilkins. pp. 310. ISBN 978-0781765275.
- ↑ Zhou, Ming; Magi-Galluzzi, Cristina (2006). Genitourinary Pathology: A Volume in Foundations in Diagnostic Pathology Series (1st ed.). Churchill Livingstone. pp. 161. ISBN 978-0443066771.