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'''Papillary renal neoplasm with reverse polarity''' is a rare [[renal tumour]] and evolving entity.<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''' is a rare [[renal tumour]] and an evolving entity.<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> It has a distinctive morphology that matches the name. | ||
==General== | ==General== | ||
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NEGATIVE: vimentin (stroma), CD117, CD10. | NEGATIVE: vimentin (stroma), CD117, CD10. | ||
PRNRP is thought to be distinct from papillary RCC.[1][2] Limited data suggests PRNRP has an indolent behaviour.[3] Follow-up is recommended. | The findings are in keeping with papillary renal neoplasm with reverse polarity (PRNRP). PRNRP is thought to be distinct from papillary RCC.[1][2] Limited data suggests PRNRP has an indolent behaviour.[3] Follow-up is recommended. | ||
1. Pathol Int. 2024 Apr;74(4):222-226. doi: 10.1111/pin.13417. https://pubmed.ncbi.nlm.nih.gov/38456605/ | 1. Pathol Int. 2024 Apr;74(4):222-226. doi: 10.1111/pin.13417. https://pubmed.ncbi.nlm.nih.gov/38456605/ |
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