Clear Cell Adenocarcinoma of the Renal Pelvis in a Male Patient

Table 1

Summary of immunohistochemical stains in the differential diagnosis of clear cell adenocarcinoma in the urinary tract [5, 6, 10–14].

Immunomarker	CCA	RCC	Urothelial carcinoma
Cytokeratin 7	+	+ or −*	+
PAX8	+	+	−
Hepatocyte nuclear factor-1 beta	+	+	−
RCC marker antigen	−	+	−
CD10	− or focal +	+	−
Uroplakin III	− or focal +	−	+

CCA: clear cell adenocarcinoma; RCC: renal cell carcinoma. ∗Cytokeratin 7 is positive in papillary RCC but negative in clear cell RCC.