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Kidney tumours (view source)

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===Sign out===
===Sign out===
====Missed renal biopsy====
====Missed renal biopsy====
<pre>
{{Main|Missed renal biopsy}}
KIDNEY (LESION), LEFT, CORE BIOPSY:
- RENAL PARENCHYMA.
- NEGATIVE FOR MASS LESION, SEE COMMENT.
 
COMMENT:
No mass lesion is apparent in the tissue sampled. A re-biopsy should be considered.
 
Renal parenchyma:
- Glomeruli: seven glomeruli sampled, no apparent glomerular pathology on the H&E sections.
- Interstitium: interstitial fibrosis is not identified.
- Tubules: no pathology is apparent.
- Vessels: mild atherosclerosis, no hyalinization of arterioles apparent.
</pre>


=Tabular comparison (selected tumours)=  
=Tabular comparison (selected tumours)=  
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*[[ALK translocation renal cell carcinoma]].
*[[ALK translocation renal cell carcinoma]].


An entity proposed after Vancouver:
==Entities proposed after Vancouver==
*[[Eosinophilic, solid and cystic renal cell carcinoma]].
*[[Eosinophilic, solid and cystic renal cell carcinoma]] - part of 2022 WHO Classification.
*[[Biphasic hyalinizing psammomatous renal cell carcinoma]].
*[[Papillary renal neoplasm with reverse polarity]].
*[[Low-grade oncocytic renal tumour]].


=Renal cell carcinoma=
=Renal cell carcinoma=
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*Male>female (~2:1).
*Male>female (~2:1).
*Hereditary - familial syndromes (see [[Hereditary RCC]]).
*Hereditary - familial syndromes (see [[Hereditary RCC]]).
*[[Obesity]].<ref name=pmid8770461>{{Cite journal  | last1 = Chow | first1 = WH. | last2 = McLaughlin | first2 = JK. | last3 = Mandel | first3 = JS. | last4 = Wacholder | first4 = S. | last5 = Niwa | first5 = S. | last6 = Fraumeni | first6 = JF. | title = Obesity and risk of renal cell cancer. | journal = Cancer Epidemiol Biomarkers Prev | volume = 5 | issue = 1 | pages = 17-21 | month = Jan | year = 1996 | doi =  | PMID = 8770461 }}</ref>


===Subtypes of RCC===
===Subtypes of RCC===
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==Hereditary renal cell carcinoma==
==Hereditary renal cell carcinoma==
The classics - which are ''all'' autosomal dominant:<ref name=Ref_PBoD1016>{{Ref PBoD|1016}}</ref>
{{Main|Hereditary renal cell carcinoma}}
# [[Von Hippel-Lindau syndrome]].
#* VHL gene mutation.
#* Clear cell RCC.
# Hereditary [[clear cell renal cell carcinoma]].
#* VHL gene mutation. 
# Hereditary [[papillary renal cell carcinoma]].
#* MET proto-oncogene mutation.
#* PaRCC type 1.<ref name=Ref_WMSP290>{{Ref WMSP|290}}</ref>
# [[Hereditary leiomyomatosis and renal cell cancer]]:<ref name=Ref_WMSP290>{{Ref WMSP|290}}</ref>
#* FH (fumarate hydratase) gene mutation.<ref name=omim136850>{{OMIM|136850}}</ref>
#* PaRCC type 2.
#* Benign [[leiomyoma]]s skin/[[uterine leiomyoma|uterus]].
#* Uterine [[leiomyosarcoma]].
# [[Birt–Hogg–Dubé syndrome]]:<ref name=Ref_WMSP290>{{Ref WMSP|290}}</ref>
#* FLCN (folliculin) gene mutation.<ref name=omim135150>{{OMIM|135150}}</ref>
#* Skin lesions (fibrofolliculoma, trichodiscoma, [[acrochordon]]).
#* ChRCC most common, other types seen (e.g. [[renal oncocytoma|oncocytoma]]).
#* Variable penetrance (autosomal dominant).
 
Others:
* Hereditary papillary carcinoma (TFE3 related translocations).<ref name=omim314310>{{OMIM|314310}}</ref>
 
Notes:<br>
*A total of ten hereditary renal cancer syndromes have been described.  In eight of the ten the gene is known.<ref name=pmid20817385>{{Cite journal  | last1 = Verine | first1 = J. | last2 = Pluvinage | first2 = A. | last3 = Bousquet | first3 = G. | last4 = Lehmann-Che | first4 = J. | last5 = de Bazelaire | first5 = C. | last6 = Soufir | first6 = N. | last7 = Mongiat-Artus | first7 = P. | title = Hereditary renal cancer syndromes: an update of a systematic review. | journal = Eur Urol | volume = 58 | issue = 5 | pages = 701-10 | month = Nov | year = 2010 | doi = 10.1016/j.eururo.2010.08.031 | PMID = 20817385 }}</ref>
 
===Molecular===
Recurrent molecular changes in RCC:
*Clear cell RCC:
**Loss of 3p - contains the VHL gene.
*Papillary RCC:
**Sporadic:
***Trisomy 7, 16, 17.
***Loss of Y.
**Familial:
***Trisomy 7 - contains MET gene.<ref>{{OMIM|164860}}</ref>


==Renal cell carcinoma grading==
==Renal cell carcinoma grading==
===General===
{{Main|Renal cell carcinoma grading}}
There are two systems:
*''Fuhrman grading'':
**Older and more complicated.
**Based on nuclear size and shape, chromatin pattern and [[nucleoli|nucleolar size]].<ref name=Ref_GUP282>{{Ref GUP|282}}</ref>
*''[[ISUP]] grading'':<ref name=pmid24025520>{{cite journal |author=Delahunt B, Cheville JC, Martignoni G, ''et al.'' |title=The International Society of Urological Pathology (ISUP) grading system for renal cell carcinoma and other prognostic parameters |journal=Am. J. Surg. Pathol. |volume=37 |issue=10 |pages=1490–504 |year=2013 |month=October |pmid=24025520 |doi=10.1097/PAS.0b013e318299f0fb |url=}}</ref>
**Newer and less complicated.
**Mostly based on [[nucleoli|nucleolar size]] and to a much lesser degree on size and morphology
**Developed based on ''Fuhrman grading''.
 
===ISUP grading===
Criteria:<ref name=pmid24025520/>
*Grade 1 - nucleoli absent/very small at 400x. §
*Grade 2 - nucleoli seen with 400x, but not at 100x. §§
*Grade 3 - nucleoli seen at 100x, i.e. with the 10x objective.
*Grade 4 - extreme nuclear pleomorphism (esp. nuclear enlargement) ''or'' [[renal cell carcinoma with sarcomatoid differentiation|sarcomatoid differentiation]] ([[spindle cell]]s<ref name=pmid15763002>{{Cite journal  | last1 = Dall'Oglio | first1 = MF. | last2 = Lieberknecht | first2 = M. | last3 = Gouveia | first3 = V. | last4 = Sant'Anna | first4 = AC. | last5 = Leite | first5 = KR. | last6 = Srougi | first6 = M. | title = Sarcomatoid differentiation in renal cell carcinoma: prognostic implications. | journal = Int Braz J Urol | volume = 31 | issue = 1 | pages = 10-6 | month =  | year =  | doi =  | PMID = 15763002 }}</ref> or [[Renal cell carcinoma with rhabdoid morphology|rhabdoid cells]]).
 
Cavets:<ref name=pmid24025520/>
*Higher grade component trumps lower grade component.
**No agreed upon minimum quantity of high grade component for upgrading.
***37% use 1 field of view with the x10 objective. †
***41% use 1 field of view with the x40 objective. ‡
*Grading system ''not'' used for ''[[chromophobe RCC]]''.
**The experience with the ''Fuhrman grading'' system showed it is ''not'' prognostic for chromophobe RCC.<ref name=pmid17527087>{{Cite journal  | last1 = Delahunt | first1 = B. | last2 = Sika-Paotonu | first2 = D. | last3 = Bethwaite | first3 = PB. | last4 = McCredie | first4 = MR. | last5 = Martignoni | first5 = G. | last6 = Eble | first6 = JN. | last7 = Jordan | first7 = TW. | title = Fuhrman grading is not appropriate for chromophobe renal cell carcinoma. | journal = Am J Surg Pathol | volume = 31 | issue = 6 | pages = 957-60 | month = Jun | year = 2007 | doi = 10.1097/01.pas.0000249446.28713.53 | PMID = 17527087 }}</ref>
 
Notes:
*† Suffers from [[IPFitis]].
*‡ Suffers from [[HPFitis]].
*§ Some describe Grade 1 nuclei as ''lymphocyte-like''.{{fact}}
*§§ Some suggest the following relationship between grading/nucleoli:{{fact}}  
**Grade 1 = nucleoli seen at 400x.
**Grade 2 = nucleoli seen at 200x.
**Grade 3 = nucleoli seen at 100x.


==Renal cell carcinoma staging==
==Renal cell carcinoma staging==
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{{Main|Chromophobe renal cell carcinoma}}
{{Main|Chromophobe renal cell carcinoma}}


==Clear cell papillary renal cell carcinoma==
==Clear cell papillary renal cell tumour==
{{Main|Clear cell papillary renal cell carcinoma}}
In the past, it was known as ''clear cell papillary renal cell carcinoma''.
{{Main|Clear cell papillary renal cell tumour}}


==Unclassified renal cell carcinoma==
==Unclassified renal cell carcinoma==
Michael
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