Table 3. Immunohistochemical staining intensity of EGFR and LRIG1 in tumours compared with normal tissue from the same patients.

Patient	Type of RCC	EGFR staining	LRIG1 staining
C.2	Conventional	+++	++
C.9	Conventional	++	+a
C.11	Conventional	+++	0
C.15	Conventional	++	+
C.17	Conventional	+	+
P.6	Papillary	+++	+a
P.8	Papillary	+++	++
P.9	Papillary	++	+

The intensity was graded 0=no staining, +=less staining than the kidney cortex from the same patient, ++=equal staining as kidney cortex, +++=more staining than the kidney cortex.

^aExhibited scattered clusters of positive cells.