1. Pathological tumour size
  • cm x 0.2
  1. LN stage
    • None = 1
    • 1-3 LN involved = 2
    • 3 LN = 3 +

  2. Histological grade
  • Scored 1-3

Divided into 6 prognostic groups:

  • Predicts 5 and 10-year survival for EPG = 96% and for VPG = 39%
  • Verified prospectively in 2 large multicentre studies