Clear Cell Adenocarcinoma of the Renal Pelvis in a Male Patient

Figure 1

Clear cell adenocarcinoma. (a) Exophytic papillary growth of adenocarcinoma in dilated pelvicalyceal system with adjacent atrophic renal parenchyma (lower left). (b) The papillary structures are lined with hobnail cells with large round nuclei and clear cytoplasm. (c) Deposits of hyaline material in the stroma of the papillae. (d) Psammoma bodies are focally present.