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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Cancer Cytopathologyarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Cancer Cytopathology
Article . 2016 . Peer-reviewed
License: Wiley Online Library User Agreement
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Cytomorphology of clear cell papillary renal cell carcinoma

Authors: Xiaoqi, Lin;

Cytomorphology of clear cell papillary renal cell carcinoma

Abstract

BACKGROUNDClear cell papillary renal cell carcinoma (CCPRCC) shares some morphologic and immunohistochemical markers with clear cell RCC and papillary RCC. To the author's knowledge, its cytomorphology on fine‐needle aspiration (FNA) or touch preparations (TPs) of core needle biopsy specimens has not been well delineated in the English language literature.METHODSThe FNA/TP cytomorphology of 7 retrieved cases was studied.RESULTSThe tumor cells were arranged in small nests (100%), 3‐dimensional clusters (71%), papillary/tubular/acinar arrays (43%), and as single cells (57%). The tumor cells were columnar (100%) and polygonal (57%) in shape, with eccentric, small, round‐to‐oval nuclei. The nuclei contained evenly distributed, fine granular chromatin and demonstrated a smooth nuclear membrane (100%) (Fuhrman grade 1 to 2). The tumor cells had a moderate amount of delicate or clear cytoplasm containing small vacuoles (100%) and ill‐defined cytoplasmic borders (100%). Scattered macrophages (57%) and necrosis (29%) were identified in the background. Vessels were noted within the papillary cores, transversing or surrounding nests of tumors. Immunochemical studies demonstrated expression of cytokeratin 7 (CK7) (100%), carbonic anhydrase IX (CA 9) (100% in a cup‐shaped membranous pattern), α‐methylacyl‐CoA racemase (AMACR) (50%), and CD10 (43%). The tumor cells were negative for CD117.CONCLUSIONSCCPRCC was found to demonstrate cytologic features that when taken together are helpful in diagnosing CCPRCC on FNA smears and TPs. If core needle biopsy specimens or cell blocks are available, an immunohistochemical panel including CK7, CA IX, CD10, and AMACR may help in excluding congeners. This subtype of RCC requires differentiation from clear cell RCC and papillary RCC due to its low‐grade indolent behavior. Cancer Cytopathol 2017;125:48‐54. © 2016 American Cancer Society.

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Keywords

Adult, Male, Biopsy, Fine-Needle, Keratin-7, Racemases and Epimerases, Middle Aged, Diagnosis, Differential, Antigens, Neoplasm, Biomarkers, Tumor, Humans, Female, Neprilysin, Carbonic Anhydrase IX, Carcinoma, Renal Cell, Aged

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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
22
Top 10%
Top 10%
Top 10%
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