Related Experiment Video
Updated: May 2, 2026
In Vivo, Percutaneous, Needle Based, Optical Coherence Tomography of Renal Masses
Published on: March 30, 2015
Role of percutaneous needle biopsy for renal masses
Elaine M Caoili1, Matthew S Davenport1
1Department of Radiology, University of Michigan Health System, Ann Arbor, Michigan.
Abstract:
The role of percutaneous renal mass biopsy has expanded considerably in the past 10 years. The incidence of incidentally detected small (< 4 cm) solid renal masses is on the rise, and despite a commensurate increase in nephron-sparing treatment, the mortality rate from renal cell carcinoma remains the same. Earlier detection and treatment have not had dramatic effects on population outcome, implying that not all small renal masses will grow to be life-limiting. Indeed, many small solid renal masses are benign, and among those that are malignant, not all share the same malignant behavior. Percutaneous biopsy provides a minimally invasive method for discriminating benign from malignant renal masses, and portends the potential for stratifying malignant risk. With recent improvements in image-guided equipment and technique, percutaneous renal mass biopsy can be performed safely and effectively, with a low complication rate (< 5%) and a high diagnostic yield (> 90%).
Insights
Percutaneous renal mass biopsy is increasingly vital for diagnosing small kidney tumors. This minimally invasive procedure accurately differentiates benign from malignant masses, aiding risk stratification and treatment decisions.
Area of Science:
- Nephrology
- Urologic Oncology
- Diagnostic Imaging
Background:
- The incidence of small renal masses detected incidentally is increasing.
- Despite advances in treatment, renal cell carcinoma mortality rates remain unchanged.
- Many small renal masses are benign or have indolent behavior.
Purpose of the Study:
- To evaluate the expanded role and effectiveness of percutaneous renal mass biopsy.
- To assess the diagnostic yield and safety of the procedure.
- To highlight its potential in risk stratification for renal masses.
Main Methods:
- Review of the expanded role of percutaneous renal mass biopsy over the past decade.
- Analysis of diagnostic yield and complication rates with modern image-guided techniques.
- Assessment of biopsy's utility in differentiating mass types and malignancy potential.
Main Results:
- Percutaneous renal mass biopsy is a safe and effective diagnostic tool.
- The procedure demonstrates a high diagnostic yield exceeding 90%.
- Complication rates are low, reported at less than 5%.
Conclusions:
- Percutaneous renal mass biopsy is crucial for managing the rising number of small renal masses.
- It enables accurate discrimination between benign and malignant lesions.
- The biopsy aids in personalized risk stratification and informs treatment strategies.
