Journals / Bozok Tıp Dergisi / 2026 / Cilt: 16 Sayı: 2

INVESTIGATION OF THE RATE OF BENIGN HISTOLOGY AND RELATED FACTORS IN CLINICAL STAGE T1 KIDNEY TUMORS

Klinik Evre T1 Böbrek Tümörlerinde Benign Histoloji Sıklığı ve İlişkili Faktörlerin İncelenmesi

Serkan Yıldız(T.C. Sağlık Bakanlığı İstinye Devlet Hastanesi)0000-0001-6717-5743
Muhammet Şahin Yılmaz(SAMSUN ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0001-8713-8675
Alihan Kokurcan(HİTİT ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0003-3486-108X
Burhan Baylan(AFYONKARAHISAR HEALTH SCIENCES UNIVERSITY, SCHOOL OF MEDICINE)0000-0002-5509-7140
Alper Gök(T.C. Ministry of Health Ankara Etlik City Hospital)0000-0001-6874-4151
Pages
346–352
Publication Date
2026-06-15
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results: Overall, 243 patients underwent surgery for a renal tumor.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: To compare the relationship between a benign pathology of preoperative parameters of renal masses <7cm (T1) in diameter.
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Key Findings & Data:To evaluate the prevalence and identify predictors of benign histopathology in renal masses smaller than 7 cm (T1 stage).
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Conclusion & Impact:Results: Overall, 243 patients underwent surgery for a renal tumor.
🔬Design:Araştırma Makalesi
📍Scope:2007 Verileri
⚙️Variables:Renal Hücreli Karsinom · Böbrek Kanseri · Nefrektomi

Abstract

Objectives: To compare the relationship between a benign pathology of preoperative parameters of renal masses <7cm (T1) in diameter. To evaluate the prevalence and identify predictors of benign histopathology in renal masses smaller than 7 cm (T1 stage). Materials and Methods: Patients who underwent radical nephrectomy (RN) or partial nephrectomy (PN) for renal masses < 7 cm (T1) at Ankara City Etlik Hospital, between January 2007 and June 2016 were evaluated retrospectively. Data including age, gender, smoking history, comorbidities (diabetes mellitus, hypertension, dyslipidemia, obesity), presentation symptoms or signs (hematuria, weight loss, hypertension), tumor size, location, laterality, the pattern of growth (endophytic/exophytic) and character (cystic/ solid) were collected. Results: Overall, 243 patients underwent surgery for a renal tumor. Among these, 58 (23.8%) had benign, and 185 (76.2%) had malignant tumor histopathology. Female sex (63.8%) was significantly higher in the benign tumor group (p=0.004). There was no significant difference between the groups regarding age, tumor size, smoking history and comorbidities, laterality (left/right), presentation symptoms, tumor location (upper/middle/lower pole), the pattern of growth (endophytic/exophytic) and character (cystic/ solid) were observed pathological results to impact not significantly (p>0.05). No significant differences were observed between the groups in terms of age, tumor size, smoking history, comorbidities, laterality, presentation symptoms, tumor location, growth pattern, or tumor characteristics (p>0.05). Conclusion: In our study, the female gender was associated with benign histopathology in small renal tumors. As a result, predictors before surgery may be considered due to the high rate of benign pathology of small renal masses.

Özet

Amaç: Çapı <7 cm (T1) olan renal kitlelerde preoperatif parametrelerin benign patoloji ile ilişkisini karşılaştırmak. Gereç ve Yöntemler: Ocak 2007 ile Haziran 2016 arasında Ankara Şehir Etlik Hastanesi’nde çapı <7 cm (T1) olan renal kitleler nedeniyle radikal nefrektomi (RN) veya parsiyel nefrektomi (PN) uygulanan hastalar retrospektif olarak değerlendirildi. Yaş, cinsiyet, sigara öyküsü, komorbiditeler (diabetes mellitus, hipertansiyon, dislipidemi, obezite), başvuru semptom veya bulguları (hematüri, kilo kaybı, hipertansiyon), tümör boyutu, yerleşimi, tarafı, büyüme paterni (endofitik/ekzofitik) ve karakteri (kistik/solid) dahil olmak üzere veriler toplandı. Bulgular: Toplamda 243 hastaya renal tümör nedeniyle cerrahi uygulandı. Bunların 58’inde (%23,8) benign, 185’inde (%76,2) malign tümör histopatolojisi vardı. Benign tümör grubunda kadın cinsiyet (%63,8) anlamlı olarak daha yüksekti (p=0,004). Yaş, tümör boyutu, sigara öyküsü ve komorbiditeler, taraf (sol/sağ), başvuru semptomları, tümör yerleşimi (üst/orta/alt pol), büyüme paterni (endofitik/ekzofitik) ve karakteri (kistik/ solid) açısından gruplar arasında anlamlı fark gözlenmedi ve patolojik sonuçlar üzerinde anlamlı bir etkisi olmadığı görüldü (p>0,05). Sonuç: Çalışmamızda küçük renal tümörlerde kadın cinsiyet benign histopatoloji ile ilişkili bulundu. Sonuç olarak, küçük renal kitlelerde benign patoloji oranının yüksek olması nedeniyle cerrahi öncesi prediktörler dikkate alınabilir.

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Cite This Article

Yıldız, S., Yılmaz, M. Ş., Kokurcan, A., Cavıldak, İ. K., Baylan, B., Gök, A. (2026). INVESTIGATION OF THE RATE OF BENIGN HISTOLOGY AND RELATED FACTORS IN CLINICAL STAGE T1 KIDNEY TUMORS. Bozok Tıp Dergisi, Cilt: 16 Sayı: 2, 346–352. https://doi.org/10.16919/bozoktip.1906840

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References (21)

  1. Akdogan B, Gudeloglu A, Inci K, Gunay LM, Koni A, Ozen H. Prevalence and predictors of benign lesions in renal masses smaller than 7 cm presumed to be renal cell carcinoma. Clin Genitourin Cancer. 2012;10(2):121-5.
  2. Soga N, Ogura Y, Hayashi N. Predictive factors for benign lesions in partially or radically resected kidneys in a single independent cancer center. Curr Urol. 2013;7(2):70-4.
  3. Jeon HG, Lee SR, Kim KH, Oh YT, Cho NH, Rha KH, et al. Benign lesions after partial nephrectomy for presumed renal cell carcinoma in masses 4 cm or less: prevalence and predictors in Korean patients. Urology. 2010;76(3):574-9.
  4. Park SY, Jeon SS, Lee SY, Jeong BC, Seo SI, Lee HM, et al. Incidence and predictive factors of benign renal lesions in Korean patients with preoperative imaging diagnoses of renal cell carcinoma. J Korean Med Sci. 2011;26(3):360-4.
  5. Frank I, Blute ML, Cheville JC, Lohse CM, Weaver AL, Zincke H. Solid renal tumors: an analysis of pathological features related to tumor size. J Urol. 2003;170(6 Pt 1):2217-20.
  6. Snyder ME, Bach A, Kattan MW, Raj GV, Reuter VE, Russo P. Incidence of benign lesions for clinically localized renal masses smaller than 7 cm in radiological diameter: influence of sex. J Urol. 2006;176(6 Pt 1):2391-6.
  7. Kutikov A, Fossett LK, Ramchandani P, Tomaszewski JE, Siegelman ES, Banner MP, et al. Incidence of benign pathologic findings at partial nephrectomy for solitary renal mass presumed to be renal cell carcinoma on preoperative imaging. Urology. 2006;68(4):737-40.
  8. Murphy AM, Buck AM, Benson MC, McKiernan JM. Increasing detection rate of benign renal tumors: evaluation of factors predicting for benign tumor histologic features during past two decades. Urology. 2009;73(6):1293-7.
  9. Lane BR, Babineau D, Kattan MW, Novick AC, Gill IS, Zhou M, et al. A preoperative prognostic nomogram for solid enhancing renal tumors 7 cm or less amenable to partial nephrectomy. J Urol. 2007;178(2):429-34.
  10. Oh SW, Yoon YS, Shin SA. Effects of excess weight on cancer incidences depending on cancer sites and histologic findings among men: Korea National Health Insurance Corporation Study. J Clin Oncol. 2005;23(21):4742-54.
  11. McKiernan J, Yossepowitch O, Kattan MW, Simmons R, Motzer RJ, Reuter VE, et al. Partial nephrectomy for renal cortical tumors: pathologic findings and impact on outcome. Urology. 2002;60(6):1003-9.
  12. Pahernik S, Roos F, Hampel C, Gillitzer R, Melchior SW, Thüroff JW. Nephron sparing surgery for renal cell carcinoma with normal contralateral kidney: 25 years of experience. J Urol. 2006;175(6):2027-31.
  13. Schlomer B, Figenshau RS, Yan Y, Venkatesh R, Bhayani SB. Pathological features of renal neoplasms classified by size and symptomatology. J Urol. 2006;176(4 Pt 1):1317-20.
  14. Fujii Y, Komai Y, Saito K, Iimura Y, Yonese J, Kawakami S, et al. Incidence of benign pathologic lesions at partial nephrectomy for presumed RCC renal masses: Japanese dual-center experience with 176 consecutive patients. Urology. 2008;72(3):598-602.
  15. Kural AR, Demirkesen O, Onal B, Obek C, Tunc B, Onder AU, et al. Outcome of nephron-sparing surgery: elective versus imperative indications. Urol Int. 2003;71(2):190-6.
  16. Hosmer DW, Lemeshow S, Sturdivant RX. Applied Logistic Regression. 3rd ed. New York: Wiley; 2013. 17. Silverberg E, Lubera JA. Cancer statistics, 1988. CA Cancer J Clin. 1988;38(1):5-22.
  17. Jemal A, Siegel R, Ward E, Murray T, Xu J, Thun MJ. Cancer statistics, 2007. CA Cancer J Clin. 2007;57(1):43-66.
  18. Gill IS, Matin SF, Desai MM, Kaouk JH, Steinberg A, Mascha E, et al. Comparative analysis of laparoscopic versus open partial nephrectomy for renal tumors in 200 patients. J Urol. 2003;170(1):64-8.
  19. Marszalek M, Ponholzer A, Brössner C, Wachter J, Maier U, Madersbacher S. Elective open nephron-sparing surgery for renal masses: single-center experience with 129 consecutive patients. Urology. 2004;64(1):38-42.
  20. Sekito S, Ogura Y, Soga N, Kojima T. Pre-operative Serum Albumin as a Potential Predictor of Benign Lesions in Renal Masses. Cancer Diagn Progn. 2022;2(3):345-50.
  21. Pierorazio PM, Patel HD, Johnson MH, Sozio SM, Sharma R, Iyoha E, et al. Distinguishing malignant and benign renal masses with composite models and nomograms: A systematic review and meta-analysis of clinically localized renal masses suspicious for malignancy. Cancer. 2016;122(21):3267-76.