Abstract

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• 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.