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 |