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    Wilms Tumor and Other Childhood Kidney Tumors Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Cystic Partially Differentiated Nephroblastoma

    General Information About Cystic Partially Differentiated Nephroblastoma

    Cystic partially differentiated nephroblastoma is a rare cystic variant of Wilms tumor (1%), with unique pathologic and clinical characteristics. It is composed entirely of cysts, and their thin septa are the only solid portion of the tumor. The septa contain blastemal cells in any amount with or without embryonal stromal or epithelial cell type. Several pathologic features distinguish this neoplasm from standard Wilms tumor.

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    Recurrence has been reported following tumor spillage at surgery.[1][Level of evidence: 3iiiA]

    (Refer to the Wilms tumor Clinical Features and Diagnostic and Staging Evaluation sections of this summary for more information about the clinical features and diagnostic evaluation of childhood kidney tumors.)

    Standard Treatment Options for Cystic Partially Differentiated Nephroblastoma

    Standard treatment options for cystic partially differentiated nephroblastoma include the following:

    1. Surgery. Patients with stage I disease have a 100% survival rate with surgery alone.[2]
    2. Surgery and adjuvant chemotherapy. Patients with stage II disease have an excellent outcome with tumor resection followed by postoperative vincristine and dactinomycin.[2]


    1. Baker JM, Viero S, Kim PC, et al.: Stage III cystic partially differentiated nephroblastoma recurring after nephrectomy and chemotherapy. Pediatr Blood Cancer 50 (1): 129-31, 2008.
    2. Blakely ML, Shamberger RC, Norkool P, et al.: Outcome of children with cystic partially differentiated nephroblastoma treated with or without chemotherapy. J Pediatr Surg 38 (6): 897-900, 2003.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Public Information from the National Cancer Institute

    Last Updated: May 28, 2015
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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