Table 1. Expression of EpICD in RB primary tumor by IHC.

Tumor details	Intensity	Percent Positivity
314/10	++++	90
435/03	+++	70
1002/03	+++	60
423/03	++	50
515/08	+++	65
935/10	+	20–30
403/08	++	40
679/10	++	60
544/10	+++	70–80
153/10	+++	70
520/11	+++	80

+ = 20–30 number of cells have positive staining (%).

++ = 31–60 number of cells have positive staining (%).

+++ or more = 61–80 number of cells have positive staining (%).

++++ = 81 or higher number of cells have positive staining (%).