Primary localized amyloidoma of the renal pelvis: A case report and literature review

  • Authors:
    • Wei Lu
    • Yanjun Wang
    • Meng Zhang
    • Yonghong Li
    • Yun Cao
    • Yongbo Xiao
    • Zhiming Cai
    • Song Wu
    • Fangjian Zhou
  • View Affiliations

  • Published online on: December 16, 2015     https://doi.org/10.3892/ol.2015.4038
  • Pages: 1095-1100
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Abstract

Primary localized amyloidomas of the renal pelvis are challenging to diagnose, due to non-specific imaging results and the unusual location. The present study reports a rare case of primary localized amyloidoma of the renal pelvis and aims to illustrate the challenges in pre-operatively discriminating between this disease and transitional cell carcinomas. The present study identified that the mass was situated in the left renal pelvis using ultrasonography. A nephroureterectomy was performed following careful preparation. Finally, histopathological studies revealed that the tumor consisted of massive diffuse deposits of amyloid and microscopic amorphous eosinophilic material, which stained positively for Congo red, demonstrating potassium permanganate digestion. Consequently, a diagnosis of amyloid light chain‑type amyloidoma was determined. Systematic examinations were performed following the unexpected diagnosis, which eliminated the possibility of amyloid associated‑type amyloidoma. In total, 4 months post‑surgery, the patient remained tumor-free.
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February-2016
Volume 11 Issue 2

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Lu W, Wang Y, Zhang M, Li Y, Cao Y, Xiao Y, Cai Z, Wu S and Zhou F: Primary localized amyloidoma of the renal pelvis: A case report and literature review. Oncol Lett 11: 1095-1100, 2016
APA
Lu, W., Wang, Y., Zhang, M., Li, Y., Cao, Y., Xiao, Y. ... Zhou, F. (2016). Primary localized amyloidoma of the renal pelvis: A case report and literature review. Oncology Letters, 11, 1095-1100. https://doi.org/10.3892/ol.2015.4038
MLA
Lu, W., Wang, Y., Zhang, M., Li, Y., Cao, Y., Xiao, Y., Cai, Z., Wu, S., Zhou, F."Primary localized amyloidoma of the renal pelvis: A case report and literature review". Oncology Letters 11.2 (2016): 1095-1100.
Chicago
Lu, W., Wang, Y., Zhang, M., Li, Y., Cao, Y., Xiao, Y., Cai, Z., Wu, S., Zhou, F."Primary localized amyloidoma of the renal pelvis: A case report and literature review". Oncology Letters 11, no. 2 (2016): 1095-1100. https://doi.org/10.3892/ol.2015.4038