Table 1.

The standard of identifying gross pathological lesion indexes of organs by pathological observation

Organs	Lesion indexes
	–	1+	2+	3+
Lung	Without TB nodules and caseous necrosis	The number of TB nodules ≤10 or the area of caseous necrosis up to 20%	The number of TB nodules ≥10 or the area of caseous necrosis up to 40%	The number of TB nodules ≥20 or the area of caseous necrosis up to 40%
Liver	Normal size	Slight swell a	Moderate swell b	Severe swell c
Spleen	Normal size	Slight swell a	Moderate swell b	Severe swell c

Note: Relative to normal liver and spleen, ^a swell was less than 20%; ^b swell was more than 20% and less than 40%; ^c swell was more than 40%