Diagnostic accuracy and clinical impact of imaging-guided needle biopsy of renal masses. Retrospective analysis on 150 cases.
Summary of "Diagnostic accuracy and clinical impact of imaging-guided needle biopsy of renal masses. Retrospective analysis on 150 cases."
OBJECTIVE:
To review our method of perform needle biopsies of renal masses.
METHODS:
We analysed 150 consecutive imaging-guided percutaneous biopsies. The pathological diagnosis was verified on clinical outcome in 129 cases (40 surgical resection, 53 thermal ablation, two medical treatment and 34 watchful waiting). Twenty-six patients underwent fine-needle aspiration biopsy (FNAB), 45 core-needle biopsy (CB) and 58 FNAB + CB. After review by two expert pathologists, cumulative accuracy of all FNAB (84) and all CB (103) was calculated. The rate of complications and mass management other than surgery was estimated.
RESULTS:
The final diagnosis was malignancy in 97 cases (benign mass in 32). FNAB correctly diagnosed 64/84 masses (76.2%), CB 96/103 (93.2%). Of 58 masses submitted for both FNAB and CB, CB provided a 22.5% accuracy improvement. Major and minor complications occurred in 0% and 5.3%. Renal biopsy altered clinical management in 89/129 cases (68.9%), in terms of choosing therapeutic options other than surgery.
CONCLUSION:
CB is more accurate than FNAB and should be preferred in renal mass biopsy. FNAB may precede CB when an expert pathologist can immediately evaluate the samples. Renal biopsy influences renal mass management.
Affiliation
Institute of Radiology, University of Torino, Facoltà San Luigi Gonzaga, Regione Gonzole, 10, 10043, Orbassano (TO), Italy, andrea.veltri@unito.it.
Journal Details
This article was published in the following journal.
Name: European radiology
ISSN: 1432-1084
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20809129
- DOI: http://dx.doi.org/10.1007/s00330-010-1938-9
Medical and Biotech [MESH] Definitions
Ultrasonography, Interventional
The use of ultrasound to guide minimally invasive surgical procedures such as needle ASPIRATION BIOPSY; DRAINAGE; etc. Its widest application is intravascular ultrasound imaging but it is useful also in urology and intra-abdominal conditions.
Biopsy, Needle
Removal and examination of tissue obtained through a transdermal needle inserted into the specific region, organ, or tissue being analyzed.
Radiography, Interventional
Diagnostic and therapeutic procedures that are invasive or surgical in nature, and require the expertise of a specially trained radiologist. In general, they are more invasive than diagnostic imaging but less invasive than major surgery. They often involve catheterization, fluoroscopy, or computed tomography. Some examples include percutaneous transhepatic cholangiography, percutaneous transthoracic biopsy, balloon angioplasty, and arterial embolization.
Magnetic Resonance Imaging, Interventional
Minimally invasive procedures guided with the aid of magnetic resonance imaging to visualize tissue structures.
Cordocentesis
The collecting of fetal blood samples via ultrasound-guided needle aspiration of the blood in the umbilical vein.
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