The Radiologic and Clinical Aspects of Calcified Hypernephroma

Abstract

The radiologic, pathologic, and clinical findings were reviewed in 18 patients with calcified hypernephroma and 6 with calcified benign renal lesions. The pattern of calcification in a renal parenchymal lesion apparently is of little assistance in diagnosis; in this series, many hypernephromas had peripheral curvilinear calcifications, and most benign renal lesions had internal amorphous calcifications. No distinct angiographic pattern probably exists in calcified hypernephroma, and a spectrum ranging from avascular to hypervascular may be identified. These tumors may behave more benignly than uncalcified hypernephroma (5-yr survival, 78%).