Gray-scale sonographic spectrum of hypernephromas.

Abstract
The sonographic appearance of 43 proved hypernephromas was characterized and correlated with angiographic and pathologic features. This report details the findings and emphasizes the criteria for recognizing poorly echnogenic tumors, which may be confused with cysts. A diagnostic dilemma may be posed by these tumors, particularly if angiography shows no evidence of tumor neovascularity. The end point in diagnostic work-up of these tumors must be based upon a correlative approach using the clinical, urographic, sonographic and angiographic data.