Objectives: This bibliometric study comprehensively evaluated global research activity on non-clear cell renal cell carcinoma (nccRCC). Methods: Using the Web of Science Core Collection, we screened 1,148 records and included 324 original English-language articles published up to May 2025. VOSviewer (v1.6.10) was used to construct co-authorship, country collaboration, citation, and keyword co-occurrence networks, and to map publication trends, citation performance, and leading authors, countries, institutions, and journals. Results: Publications on nccRCC increased steadily after 2011 and peaked in 2024. The United States, China, and South Korea were the most productive countries, and Shanghai Jiao Tong University, the University of Texas, and the National Institutes of Health were leading institutions. Choueiri TK, Tannir NM, and Motzer RJ were identified as the most prolific authors. The 324 articles accrued 14,814 citations (mean 45 citations/article) with an overall h-index of 38. Frequent keywords included “non-clear cell,” “papillary renal carcinoma,” “chromophobe RCC,” and “collecting duct carcinoma,” forming three main thematic clusters: molecular characterization, prognostic markers and clinical outcomes, and therapeutic strategies. Conclusion: Recent work showed growing interest in collecting duct carcinoma, papillary RCC, and translocation RCC, yet highlighted the need for larger, subtype-specific and genomics-integrated multicenter studies. Keywords: Bibliometric analysis, Global research trends, Molecular subtypes, NON-clear cell renal cell carcinoma, Renal Cancer epidemiology, VOSviewer
Corresponding Author: Savaş Gökçek