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. 2013 Jan 11;2:1–17. doi: 10.2147/OV.S37971

Table 1.

Grading schemes for tumor histology sections

Grade 0 Grade 1 Grade 2 Grade 3 Grade 4
Percent of necrosis per section 0 1–15 16–49 50–74 75–100
Neutrophils per 400× field 0–10 11–25 26–49 >50 >150
Lymphocytes per 400× field 0–5 6–15 16–30 >30 >150

Notes:

The microscopic field with the most severe neutrophilic infiltrate was utilized;

the microscopic field with the most severe lymphocytic infiltrate was utilized.