Purpose
Percutaneous ultrasound-guided biopsy of renal masses is a safe and accurate procedure,
once reserved for the diagnosis of unresectable renal cell carcinoma,
metastases,
lymphoma,
and infection (1-3).
Today percutaneous ultrasound-guided biopsy has an expanded role.
A substantial proportion of small,
solid renal masses are benign neoplasms.
Although imaging can be used to diagnose most of them,
some are incorrectly believed to represent renal cell carcinomas and result in unnecessary surgeries.
Percutaneous biopsy can now be used to diagnose these benign neoplasms and thus prevent them...
Methods and Materials
Patients:
A retrospective review of Clinical Centre of Ljubljana Department of Radiology database identified 60 patients who underwent ultrasound-guided percutaneous fine-needle biopsy of solid renal masses between years 2010 and 2011.
There were 27 women and 33 men; mean age of 66 years (ranging from 38 to 88 years).
The patients were referred for biopsy after the masses had been identified on previous imaging.
Procedure:
All biopsies were performed using Toshiba Aplio XV ultrasound machine with a curved array multifrequency transducer (3-6 MHz) and a...
Results
Of the 60 patients who had a fine-needle biopsy procedure performed,
the biopsy yielded a diagnostic result in 50 of the procedures (83,3%).
30 patients were diagnosed with a malignant disease.
Definite hystology data was available for 17 of these cases,
in 13 patients no definite hystology could be gathered.
For some patients the surgical procedure was contraindicated,
some decided against the surgical procedure and some chose a different institution for the surgical procedure and thus pathology result was not accessible.
The comparisment between the...
Conclusion
The success rate of fine-needle aspiration cytology resulting in a diagnostic specimen in our study was 83,3%.
Accuracy of our study corelates with the reports in literature (>70%) (3,
5-7).
US guided fine-needle aspiration cytology is a safe,
minimally invasive diagnostic procedure.
None of our 60 patients had any reported complications.
In published literature,
reported complications of fine-needle biopsy procedures are rare,
but include perirenal hemorrhage,
pneumothorax,
infection,
arteriovenous fistula and urinoma.
Death and needle track seeding are extremely uncommon (2,
4).
The comparisment between...
References
1.
Sahni VA,
Silverman SG.
Biopsy of renal masses: when and why.
Cancer Imaging.
2009 Jul 6;9:44-55.
2.
Caoili EM.
Evaluation of Sonographically Guided Percutaneous Core Biopsy of Renal Masses.
AJR 2002;179:373–378.
3.
Johnson PT,
Nazarian LN,
Feld RI,
Needleman L,
Lev-Toaff AS,
Segal SR,
Halpern EJ.
Sonographically Guided Renal Mass Biopsy Indications and Efficacy.
J Ultrasound Med 20:749–753,
2001.
4.
Renshaw AA,
Granter SR,
Cibas ES.
Fine-needle aspiration of the adult kidney.
Cancer,
81:71–88,
1997.
5.
Murphy WM,
Zambroni BR,
Emerson LD,
Moinuddin S,...
Personal Information
Domen Plut MD,
Clinical Institute of Radiology,
Universtiy Medical Centre Ljubljana;
[email protected]
Slavica Ponorac MD,
Clinical Institute of Radiology,
Universtiy Medical Centre Ljubljana;
Dubravka B.
Vidmar MD,
Clinical Institute of Radiology,
Universtiy Medical Centre Ljubljana;