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Updated: Mar 25, 2026

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Published on: February 3, 2012
A metanephric adenoma of the kidney associated with polycythemia: A case report
Pengfei Wang1, Yuan Tian1, Yuehai Xiao1
1Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China.
Abstract:
Metanephric adenoma (MA) of the kidney is a rare and frequently benign tumor with a favorable prognosis that is often diagnosed following surgical treatment. In the present study, a 54-year-old female patient presented with complaints of intermittent right-flank pain and anterior abdominal pain occurring over 2 years and sporadic gross hematuria occurring over 3 months. Ultrasonography and computerized tomography imaging revealed a neoplasm lesion localized in the right kidney. Successful open approach radical nephrectomy was performed and post-surgical histopathological examination verified the lesion as a MA of the kidney. Radical nephrectomy, cryoablation or radiofrequency may used to treat MA and a selective panel of immunostains, including WT1, EMA and AMACR, may be useful for diagnosis.
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