INITIAL EXPERIENCE WITH ENDOSCOPIC ULTRASOUND-GUIDED FINE NEEDLE ASPIRATION OF RENAL MASSES: indications, applications and limitations

Abstract

-Context -Tissue sampling of renal masses is traditionally performed via the percutaneous approach or laparoscopicaly.The utility of endoscopic ultrasound to biopsy renal lesions it remains unclear and few cases have been reported. Objectives -To evaluate the feasibility and outcome of endoscopic ultrasound fine needle aspiration of renal tumors. Method -Consecutive subjects undergoing attempted endoscopic ultrasound fine needle aspiration of a kidney mass after evaluation with computerized tomography or magnetic resonance. Results -Ten procedures were performed in nine male patients (median age 54.7 years) on the right (n = 4) and left kidney (n = 4) and bilaterally (n = 1). Kidney masses (median diameter 55 mm ; range 13-160 mm) were located in the upper pole (n = 3), the lower pole (n = 2) and the mesorenal region (n = 3). In two cases, the mass involved more than one kidney region. Surgical resection confirmed renal cell carcinoma in six patients in whom pre-operative endoscopic ultrasound fine needle aspiration demonstrated renal cell carcinoma. No complications were reported. Conclusions -Endoscopic ultrasound fine needle aspiration appears as a safe and feasible procedure with good results and minimal morbidity. HEADINGS -Kidney neoplasms, diagnosis. Ultrasonography. Endoscopic ultrasound-guided fine needle aspiration.

Endoscopic Ultrasound-Guided Renal Parenchymal Biopsy: A Series of Two Cases

“…Similarly, it could be safe and feasible to target the renal parenchyma for a guided biopsy. Most of the literature till date describes EUS-FNB from renal tumours, with a diagnostic accuracy more than 90% and a complication rate of less than 1%, with the most common being a sub-capsular hematoma [1,2]. Few other reports describing complications such as hematuria [3] also included cases where EUS-FNB was obtained from the renal tumors.…”

“…Most of the literature till date describes EUS-FNB from renal tumours, with a diagnostic accuracy more than 90% and a complication rate of less than 1%, with the most common being a sub-capsular hematoma [1,2]. Few other reports describing complications such as hematuria [3] also included cases where EUS-FNB was obtained from the renal tumors. To the best of our knowledge, there is only one report of EUS-FNB from the renal parenchyma to establish the ethology of the kidney disease [4].…”

Improving ROSE: Discrepant touch preparation and histology findings in cytology of renal masses: A 10‐year retrospective review

“…[6][7][8][9] The risk of tumor seeding is extremely low (less than 0.01%), and the risk of bleeding is very rare, with most cases being self-limiting. [8][9][10] Sampling via endoscopic ultrasound guided biopsy has also been attempted, 11,12 and some urologists have adopted the use of office based ultrasound guided renal biopsies in selected patients. 6,13 The choice between fine needle aspiration and image-guided percutaneous core needle biopsy (CNB) has historically been influenced by concerns about patient safety and diagnostic accuracy; however, literature studies demonstrate increased diagnostic accuracy in cases where sampling includes both FNAs and CNBs.…”