Table 2.

Scale of ISFC ratio values and IVD

Stromal Fibrillary Component - ISFC			Vascular Density – IVD
Score	Ratio Values		Score	Capillaries/mm2
S 1	< 10%		VD 1	< 100
S 2	10% - 20%		VD 2	100 – 200
S 3	20% - 30%		VD 3	200 – 300
S 4	> 30%		VD 4	> 300