these factors included a malignancy grading system ( mgs ) consisting of 8 items : structure ( p1 ) , differentiation into cell type ( p2 ) , nuclear polymorphism ( p3 ) , mitosis ( p4 ) , mode of invasion ( p5 ) , stage of invasion ( p6 ) , vascular invasion ( p7 ) , and host-cellular response ( p8 ) .
C0007589
differentiation
C0007634
cellular