Table 2.

Lung lesion severity categories of normal (N), moderate (M), and severe (S) based on percentage of lung consolidation and pleural lesions

	Pleurisy score1
Lung consolidation	Normal	Mild	Moderate	Severe
0–1%	N	N	M	S
2–9%	N	M	M	S
10–55%	M	M	S	S
No Score	–	–	–	S

¹Pleural lesion categories: Normal, no pleurisy or pleuritic tags, Mild, pleuritic tags between lobes or small pleuritic tags on lung surface; Moderate, significant pleuritic tags on lung surface, small pieces adhered to thoracic wall or tags on lung margins or between lobes (fringing); Severe, the whole lung adhered to thoracic wall of carcass with no lung present on offal table. The use of the term pleuritic tags refers to the adhesion of the lung to the rib cage or adhesion between lung lobes by fibrous tags.