MEC Grading Calculator
AFIP (1998)/ Brandwein (2001) Grading Systems
Cystic/Solid component ratio:
50-100
20-50
Perineural invasion:
Absent
Present
Necrosis:
Absent
Present
Mitoses:
0-3 /10 HPF
≥4 /10 HPF
Anaplasia:
Absent
Present
Lymphovascular invasion:
Absent
Present
Aggressive pattern of invasion:
Absent
Present
Bony invasion:
Absent
Present
Calculate