| Value assigned | |||
---|---|---|---|---|
Parameter | 0 | 1 | 2 | 3 |
Lung | No lesions | A few scattered foci | More extensive areas of caseation but not involving whole lung lobes | Severe and extensive caseation |
Lungs affected | Neither lung affected | One lung affected | Both lungs affected | Â |
Thoracic cavity | Pleurisy absent | Pleurisy present | Â | Â |
Liver | No lesions | Minimal lesions | More extensive lesions | Â |
Mesenteric lymph nodes | No lesions | Lesions present | Â | Â |
Additional tissues affected | No additional tissues | 1 additional tissue | 2 additional tissues | 3 or more additional tissues |