Table 2.

Microscopic evaluation scheme of acute inflammation

Neutrophil Severity
Grade 0	Scattered individual cells may be present in the wound but primarily intravascular/margin-ating or widely spaced within the wound
Grade 1	Viable/nondegenerate neutrophils as individual cells within the wound. If suppuration is present it does not coat the surface or span the length of the segment being graded
Grade 2	Variably thick suppurative inflammation that spans the length of the segment
Grade 3	Dense consistent thickness of suppurative inflammation that spans the length of the segment and neutrophils present within the wound bed below are in small clusters or individual
Grade 4	Large pools of suppurative exudate over the length of the segment with large numbers present in the underlying wound bed, mostly present in clusters. Abscess formation.
Eosinophil Severity	Scored based on the number of foci of clustered eosinophils or numerous individual cells, when viewed at 10×.
Grade 0	Less than 10 foci
Grade 1	11–20 foci
Grade 2	21 to 30 foci
Grade 3	31 to 40 foci
Grade 4	>40 foci