Renal papillary adenocarcinoma

Papillary adenocarcinoma of the kidney is an uncommon variant of renal tubular carcinoma, which on radiographic and ultrasonographic evaluation presents characteristically as a predominantly solid hypovascular or avascular mass. Surgery is required to distinguish this lesion from other solid renal lesions, which differs from the more common form of renal tubular carcinoma in several important respects.