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Updated: Jul 18, 2026

Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models
Published on: May 17, 2024
Malignant cystic nephroma
Ganesh V Raj1, Charles Yowell, John F Madden
1Division of Urology, Duke University Medical Center, Durham, North Carolina 27710, USA.
Aim:
To describe a malignant cystic nephroma in an asymptomatic man.
Methods:
Case report and review of the literature.
Results:
A 60 year old white male presented with an incidentally discovered right perirenal mass. An MRI demonstrated a large perinephric encapsulated mass with diffuse heterogeneity. Patient underwent a radical nephrectomy and retroperitoneal node dissection. Histopathological analyses of the resected specimen revealed malignant cystic nephroma.
Conclusion:
This represents the first published report of this rare tumor in an adult patient.
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