What is the role of percutaneous cyst puncture in the workup of renal cell carcinoma (RCC)?

Updated: Feb 19, 2021
  • Author: Kush Sachdeva, MD; Chief Editor: E Jason Abel, MD  more...
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Percutaneous cyst puncture and fluid analysis is used in the evaluation of potentially malignant cystic renal lesions detected by ultrasonography or computed tomography imaging.

According to the 2009 AUA management guideline, a renal mass core biopsy via a percutaneous approach, with or without fine needle aspiration, is indicated in patients for whom the results might affect approach to treatment. Biopsy is especially appropriate in patients with clinical or radiographic evidence of lymphoma, abscess, or metastasis. [20]

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