Renal cell carcinoma presenting as a simple renal cyst: A case report

  • Authors:
    • Yanlan Yu
    • Liang Ma
    • Zhenghui Wang
    • Zhigen Zhang
  • View Affiliations

  • Published online on: February 24, 2017     https://doi.org/10.3892/mco.2017.1173
  • Pages: 550-552
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Abstract

Cases of renal cell carcinoma (RCC) presenting as a simple cyst are extremely rare. We herein report the case of a patient with RCC diagnosed as a simple renal cyst preoperatively. A 39-year-old female patient presented with abdominal pain for 3 months. Ultrasonography and contrast‑enhanced computed tomography revealed a simple cyst in the left kidney. The patient underwent laparoscopic decortication of the renal cyst. Biochemical analysis of the cystic fluid revealed unusually low levels of potassium, sodium, calcium and glucose, and the histological examination of the floor of the cyst indicated malignancy. Laparoscopic nephrectomy was performed 20 days later and the pathological examination confirmed the diagnosis of RCC of the clear cell type. At the 2‑year follow‑up, the patient remained well and recurrence‑free on imaging. The aim of the present study was to emphasize the importance of recognizing that RCC may occur in what appears to be a simple renal cyst based on imaging results. Biochemical analysis of the cystic fluid may help identify the presence of malignancy.
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April 2017
Volume 6 Issue 4

Print ISSN: 2049-9450
Online ISSN:2049-9469

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APA
Yu, Y., Ma, L., Wang, Z., & Zhang, Z. (2017). Renal cell carcinoma presenting as a simple renal cyst: A case report. Molecular and Clinical Oncology, 6, 550-552. https://doi.org/10.3892/mco.2017.1173
MLA
Yu, Y., Ma, L., Wang, Z., Zhang, Z."Renal cell carcinoma presenting as a simple renal cyst: A case report". Molecular and Clinical Oncology 6.4 (2017): 550-552.
Chicago
Yu, Y., Ma, L., Wang, Z., Zhang, Z."Renal cell carcinoma presenting as a simple renal cyst: A case report". Molecular and Clinical Oncology 6, no. 4 (2017): 550-552. https://doi.org/10.3892/mco.2017.1173