by evaluating the nuclear contours of cell populations in 35 cases of retinoblastoma in routine hematoxylin and eosin stained sections and drawing them on microphotographic material , we determined an intermediate differentiated cell population among rosette tumors and undifferentiated tumors and noted the presence of trabeculoid grouping of the cells and the existence of nuclear shaping .
C0007634
the
C0007589
differentiated