Accuracy and Safety of Percutaneous Core Biopsy in Management of Renal Masses: An Initial Single-Center Experience

  • Paulo Mota Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • João Torres Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • Nuno Morais Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • Agostinho Cordeiro Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • Emanuel Carvalho-Dias Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • Francisco Botelho Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • Carlos Oliveira Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • Mário Cerqueira-Alves Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
  • Estevão Lima Surgical Sciences Research Domain, Life and Health Sciences Research Institute, ICVS/3B’s - PT Government Associate Laboratory, The Clinic Academic Center – Braga, Association (2CA-Braga), School of Medicine, University of Minho, Braga, Portugal; Department of CUF Urology and Service of Urology - Hospital of Braga, Braga, Portugal
Keywords: Biopsy, Needle, Kidney Neoplasms, Nephrectomy

Abstract

Introduction: The characterization of renal masses by biopsy before a surgical procedure is currently an option. Without this prior characterization, patients with benign renal masses may be likely to undergo unnecessary surgeries. The purpose was to determine the diagnostic accuracy and safety of renal mass biopsy.

Material and Methods: Prospective uni-institutional study of 38 patients submitted to renal mass biopsy in the period from July 2014 to May 2016.

Results: The biopsy was diagnostic in 76.3% (n = 29) of the cases. In 21.7 %% (n = 6) of the diagnostic biopsies, histology showed benign lesions, namely oncocitoma. In patients undergoing surgery, there was a 100% overall agreement between the biopsy result and the pathological outcome of the surgical specimen. The complication rate was 5.3% (n = 2), classified as Clavien-Dindo I.

Conclusion: Renal mass biopsy showed high diagnostic acuity and safety, which may prevent unnecessary surgeries. This procedure may be part of the evaluation prior to the decision to treat patients with renal masses.

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Published
2018-07-24