Primary Clear Cell Microcystic Adenoma of the Sinonasal Cavity: Pathological or Fortuitous Association?

Table 1

Immunohistochemical profile of the renal and sinonasal tumours.

Immunohistochemical marker	Clear cell RCC (2005)	Sinonasal tumour (2012)
CD10	Positive	Negative
RCC	Positive	Negative
CK7	Negative	Positive
CK20	Negative	Positive (patchy staining)
EMA	Positive	Positive
Ki67		Low proliferation
Epithelial marker AE1/3		Positive
Vimentin		Positive
ssms1		Negative
sma		Negative
Alpha-inhibin		Negative
p63		Negative
Thyroglobulin		Negative
NSE		Positive
S100		Negative
GFAP		Negative
PAS		Luminal secretions positive