Adult Wilms’ tumor: Clinical and radiographic features

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Abstract
The clinical and radiographic features of Wilms’ tumor in 4 adult patients are described. Wilms’ tumors in adults are usually bulky and contain numerous areas of necrosis and hemorrhage, imparting a complex appearance to the lesion on sonography and computed tomography. Angiography reveals the tumor to be hypovascular with some neovascularity. No specific features of the lesion differentiate it from hypernephroma. In contrast to the childhood variety, Wilms’ tumors in adults have ill-defined margins and frequently extend into the retroperitoneum. Their treatment is the subject of debate and prognosis is poor.