Background
This is a rare neoplasm of the childhood kidney with a mean age of 2 yrs. These tumors present with an abdominal mass revealing a tumor arising within the renal medulla with smooth walled cysts. The average size of the tumor was 5.5 cm. These tumors were all treated with surgical excision and none experienced recurrence or metastasis.
Stromal tumors of the kidney comprise about 15% of pediatric renal neoplasms. Wilm's tumor comprises the majority of the pediatric kidney tumors. The importance in making the correct diagnosis in this case lies in differentiating this tumor from other stromal tumors. It is currently hypothesized that these tumors are related to Wilm's tumor. Although no tumor has behaved aggressively, longer follow-up and accumulation of additional cases is needed.
OUTLINE
Histopathological Features and Variants Differential Diagnosis Commonly Used Terms Internet Links
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Last Updated 9/18/2003
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