Renal solitary fibrous tumour: A rare pathological entity

Authors

  • Biao Dong Department of Urology, First Hospital of Jilin University
  • Jianjian Zhang Department of Hepatic Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine
  • Gang Wang Department of Urology, First Hospital of Jilin University
  • Xiuyu Zhai Department of Urology, First Hospital of Jilin University
  • Yaowen Fu Department of Urology, First Hospital of Jilin University
  • Honglan Zhou Department of Urology, First Hospital of Jilin University
  • Yuantao Wang Department of Urology, First Hospital of Jilin University

DOI:

https://doi.org/10.5489/cuaj.1854

Keywords:

Solitary fibrous tumor, Renal, Immunohistochemistry, CD34

Abstract

A solitary fibrous tumour (SFT) is a rare mesenchymal cell neoplasm that can develop at any site. SFT of the kidney is extremely rare. Recently, we had a case of solitary fibrous tumour involving the left kidney in a 71-year-old female patient. The SFT was incidentally found by imaging modalities at the time of a physical workup. Computed tomography and retrograde pyelography showed a 4 × 3.5 × 4-cm nodular mass in the middle poles of the left kidney adjacent to the renal pelvis. A laparoscopic radical resection of the left kidney was performed. The tumour was well-circumscribed and composed of a mixture of spindle cells; microscopically, we found dense collagenous bands. Immunohistochemical studies showed strong reactions with CD34, bcl-2 and CD99. A nuclear positivity with Ki-67 was observed in less than 1% of cells. The tumour was negative for desmin, SMA and CD117. Histopathological and immunohistochemical studies confirmed the diagnosis of a solitary fibrous tumour.

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Published

2014-09-09

How to Cite

Dong, B., Zhang, J., Wang, G., Zhai, X., Fu, Y., Zhou, H., & Wang, Y. (2014). Renal solitary fibrous tumour: A rare pathological entity. Canadian Urological Association Journal, 8(9-10), e657–9. https://doi.org/10.5489/cuaj.1854

Issue

Vol. 8 No. 9-10 (2014): CUAJ September

Section

Case Report

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