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| Micro = cuboidal or low columnar cells (simple or pseudostratified) on papillae, interstitial foam cells in the vascular cores | | Micro = cuboidal or low columnar cells (simple or pseudostratified) on papillae, interstitial foam cells in the vascular cores | ||
| Subtypes = no ''World Health Organization'' recognized subtypes; defunct subtypes: "type 1" and "type 2", oncocytic variant | | Subtypes = no ''World Health Organization'' recognized subtypes; defunct subtypes: "type 1" and "type 2", oncocytic variant | ||
| LMDDx = [[clear cell renal cell carcinoma]], [[clear cell papillary renal cell carcinoma]], [[metanephric adenoma]] (esp. solid PaRCC type 1), [[collecting duct carcinoma]] (esp. PaRCC type 2), [[renal papillary adenoma]], [[acquired cystic disease-associated renal cell carcinoma]], [[urothelial carcinoma]], [[renal mucinous tubular and spindle cell carcinoma]], [[ALK translocation renal cell carcinoma]] | | LMDDx = [[clear cell renal cell carcinoma]], [[clear cell papillary renal cell carcinoma]], [[metanephric adenoma]] (esp. solid PaRCC type 1), [[collecting duct carcinoma]] (esp. PaRCC type 2), [[renal papillary adenoma]], [[acquired cystic disease-associated renal cell carcinoma]], [[urothelial carcinoma]], [[renal mucinous tubular and spindle cell carcinoma]], [[ALK translocation renal cell carcinoma]], [[Xp11 translocation renal cell carcinoma]] | ||
| Stains = | | Stains = | ||
| IHC = | | IHC = | ||
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==General== | ==General== | ||
* | *Historically, PaRCC was subclassified<ref name=Ref_GUP289>{{Ref GUP|289}}</ref> into ''type 1'' and ''type 2''. | ||
**Type 1 and Type 2 are different on a cytogenetic and molecular basis.<ref>{{Cite journal | last1 = Klatte | first1 = T. | last2 = Pantuck | first2 = AJ. | last3 = Said | first3 = JW. | last4 = Seligson | first4 = DB. | last5 = Rao | first5 = NP. | last6 = LaRochelle | first6 = JC. | last7 = Shuch | first7 = B. | last8 = Zisman | first8 = A. | last9 = Kabbinavar | first9 = FF. | title = Cytogenetic and molecular tumor profiling for type 1 and type 2 papillary renal cell carcinoma. | journal = Clin Cancer Res | volume = 15 | issue = 4 | pages = 1162-9 | month = Feb | year = 2009 | doi = 10.1158/1078-0432.CCR-08-1229 | PMID = 19228721 }}</ref> | **Type 1 and Type 2 are different on a cytogenetic and molecular basis.<ref>{{Cite journal | last1 = Klatte | first1 = T. | last2 = Pantuck | first2 = AJ. | last3 = Said | first3 = JW. | last4 = Seligson | first4 = DB. | last5 = Rao | first5 = NP. | last6 = LaRochelle | first6 = JC. | last7 = Shuch | first7 = B. | last8 = Zisman | first8 = A. | last9 = Kabbinavar | first9 = FF. | title = Cytogenetic and molecular tumor profiling for type 1 and type 2 papillary renal cell carcinoma. | journal = Clin Cancer Res | volume = 15 | issue = 4 | pages = 1162-9 | month = Feb | year = 2009 | doi = 10.1158/1078-0432.CCR-08-1229 | PMID = 19228721 }}</ref> | ||
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*[[Papillary renal neoplasm with reverse polarity]] (PRNRP) - nuclei at luminal aspect of cell (rather than closer to the basement membrane).<ref name=pmid31135486>{{cite journal |authors=Al-Obaidy KI, Eble JN, Cheng L, Williamson SR, Sakr WA, Gupta N, Idrees MT, Grignon DJ |title=Papillary Renal Neoplasm With Reverse Polarity: A Morphologic, Immunohistochemical, and Molecular Study |journal=Am J Surg Pathol |volume=43 |issue=8 |pages=1099–1111 |date=August 2019 |pmid=31135486 |doi=10.1097/PAS.0000000000001288 |url=}}</ref> | *[[Papillary renal neoplasm with reverse polarity]] (PRNRP) - nuclei at luminal aspect of cell (rather than closer to the basement membrane).<ref name=pmid31135486>{{cite journal |authors=Al-Obaidy KI, Eble JN, Cheng L, Williamson SR, Sakr WA, Gupta N, Idrees MT, Grignon DJ |title=Papillary Renal Neoplasm With Reverse Polarity: A Morphologic, Immunohistochemical, and Molecular Study |journal=Am J Surg Pathol |volume=43 |issue=8 |pages=1099–1111 |date=August 2019 |pmid=31135486 |doi=10.1097/PAS.0000000000001288 |url=}}</ref> | ||
**May be considered a subtype of papillary renal cell carcinoma (rather than a distinct entity). | **May be considered a subtype of papillary renal cell carcinoma (rather than a distinct entity). | ||
*[[Xp11 translocation renal cell carcinoma]]. | |||
===Images=== | ===Images=== |
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