Evidence map›Paper›PMID 40965772›Full record

SynthesisInternational urology and nephrology2026

Risk of developing a second primary cancer following a renal cell carcinoma: a systematic review and meta-analysis.

Samuel Tundealao, Praise Okunlola, Tolulope Titiloye, Bolatito Mayungbo, Abiodun Adegbesan, Anusha Sajja, Olajumoke Olarewaju

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in International urology and nephrology, 2026. 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

5 · Who and what money

Authors and funding

7 authors.

Samuel TundealaoDepartment of Biostatistics and Epidemiology, Rutgers School of Public Health, 683 Hoes Lane, Piscataway, NJ, 08854, USA. st1220@sph.rutgers.edu.ORCID http://orcid.org/0000-0002-1243-0564
Praise OkunlolaFaculty of Dentistry, College of Medicine, University of Ibadan, Ibadan, Oyo, Nigeria.
Tolulope TitiloyeMental Health Association of Morris and Sussex, Parsippany, NJ, USA.
Bolatito MayungboFaculty of Dentistry, College of Medicine, University of Ibadan, Ibadan, Oyo, Nigeria.
Abiodun AdegbesanMenzies Institute for Medical Research, University of Tasmania, Hobart, Australia.
Anusha SajjaSchool of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA.
Olajumoke OlarewajuDepartment of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study synthesizes previous studies to investigate the risk of second primary cancer (SPC) in patients with renal cell carcinoma (RCC) compared with the general population.

methodsFollowing the PRISMA guidelines, four databases were searched for relevant articles without date limits. Studies were included if they reported the standardized incidence ratio (SIR) for SPCs in patients with RCC compared with the general population. Random-effects model employing the Der Simonian and Laird method was used to pool the SIR by SPC sites. Effect heterogeneity was assessed using I

resultsTwenty-seven retrospective cohort studies published between 1993 and 2024 were included in the study. The overall risk of developing any SPCs was higher among RCC patients (pooled SIR = 1.32, CI 1.19-1.48). The risk of several SPCs was significantly higher in patients with RCC compared with the general population, including cancers of the contralateral kidney (3.68, CI 1.85-7.24), thyroid (3.05, CI 2.57-3.62), urinary bladder (2.15, CI 1.40-3.30), small intestine (1.98, CI 1.01-3.91), leukemia (1.86, CI 1.28-2.70), pancreas (1.64, CI 1.22-2.19), NH lymphoma (1.55, CI 1.21-1.98), melanoma (1.47, CI 1.15-1.88), prostate (1.44, CI 1.21-1.71), and colorectal (1.25, CI 1.10-1.43), bone (2.31, CI 1.25-4.27), endocrine system (4.33, CI 3.28-5.74) and brain/nervous system (2.20, CI 1.25-3.88).

conclusionPatients with RCC have an increased risk of SPCs compared with the general population. These findings highlight the need to develop strategies for the management of SPCs in these patients.

Indexed as

Carcinoma, Renal CellKidney NeoplasmsNeoplasms, Second PrimaryHumansIncidenceRisk AssessmentKidney cancerMultiple malignanciesRenal cell carcinomaSecond primary cancer

Identifiers

PMID40965772
PMCPMC12999740

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.