Evidence map›Paper›PMID 35244988›Full record

ArticleInvestigative and clinical urology2022

Clinicopathological features of non-conventional renal cell carcinoma histological subtypes: Learning points from a large contemporary series spanning over three decades.

Ee Jean Lim, Khi Yung Fong, Jingqiu Li, Hong Hong Huang, Kenneth Chen, Kae Jack Tay, Christopher Wai Sam Cheng, Henry Sun Sien Ho, Nye Thane Ngo, John Shyi Peng Yuen

Abstract read
In one paragraph

Article in Investigative and clinical urology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Ee Jean LimDepartment of Urology, Singapore General Hospital, Singapore.ORCID 0000-0002-5242-0651
Khi Yung FongYong Loo Lin School of Medicine, National University of Singapore, Singapore.ORCID 0000-0001-8194-0800
Jingqiu LiDepartment of Urology, Singapore General Hospital, Singapore.ORCID 0000-0002-9789-0729
Hong Hong HuangDepartment of Urology, Singapore General Hospital, Singapore.
Kenneth ChenDepartment of Urology, Singapore General Hospital, Singapore.ORCID 0000-0002-3844-7567
Kae Jack TayDepartment of Urology, Singapore General Hospital, Singapore.ORCID 0000-0003-0365-1899
Christopher Wai Sam ChengDepartment of Urology, Singapore General Hospital, Singapore.
Henry Sun Sien HoDepartment of Urology, Singapore General Hospital, Singapore.
Nye Thane NgoDepartment of Pathology, Singapore General Hospital, Singapore.ORCID 0000-0003-2419-0817
John Shyi Peng YuenDepartment of Urology, Singapore General Hospital, Singapore. john.yuen.s.p@singhealth.com.sg.ORCID 0000-0002-6367-2563

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo perform a retrospective review of the clinicopathological features of patients with conventional and non-conventional renal cell carcinoma (cRCC and ncRCC). MATERIALS AND

methodsA large prospectively maintained uro-oncological registry was accessed to extract clinicopathological data of patients diagnosed with renal tumors who subsequently underwent nephrectomy from 1990-2019. Demographics and operative parameters were extracted. Analyses of overall survival (OS) and cancer-specific survival (CSS) were performed using the Kaplan-Meier method. Cox proportional-hazards analysis was used to identify risk factors which influenced survival.

resultsThere were a total of 1,686 consecutive nephrectomies which was retrieved, with 1,286 cRCC and 400 ncRCC. The commonest ncRCC subtypes were papillary (n=198, 11.7%), clear cell papillary (n=50, 3.0%) and chromophobe (n=49, 2.9%) RCC. Kaplan-Meier estimates of OS were higher in cRCC (0.74; 95% confidence interval [CI], 0.71-0.78) than ncRCC (hazard ratio, 1.47; 95% CI, 1.16-1.87). Among individual subtypes, chromophobe RCC had the highest 5-year OS (0.90; 95% CI, 0.79-1.0). Among ncRCC subtypes, acquired cystic RCC demonstrated the highest association with end-stage renal failure and hypertension, with the highest CSS. MiT family translocation RCC had the youngest mean age at presentation (45.6±12.8 y) and excellent CSS. Factors associated with increased OS in the entire cohort included shorter operative time, partial nephrectomy and lower tumor stages.

conclusionsThis study provides a comprehensive contemporary overview of ncRCCs which are yet poorly characterized, in comparison to cRCCs. Data from this study would contribute towards tailored patient counseling and healthcare resource planning.

Indexed as

Carcinoma, Renal CellHypertensionKidney Failure, ChronicKidney NeoplasmsFemaleHumansMaleNephrectomyCarcinoma, renal cellEpidemiologyNephrectomyRetrospective studiesSurvival analysis

Identifiers

PMID35244988
PMCPMC8902431

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