Pathology Delafield and Prudden. 



Plate VI. 



Miliary Tubercles and Tuberculous Broncho-Pneumonia with 

 Diffuse (Chronic) Tuberculous Lesions in the Apex. 



There is in the apex tuberculous consolidation with coagulation 

 necrosis (caseation), new fibrous tissue, and a small cavity. The middle 

 third of the lung contains many small single and clustered miliary tuber- 

 cles and foci of tuberculous broncho-pneumonia. The lower third con- 

 tains a few similar small tuberculous foci, also scattered and in clusters. 



The appearance of the lung leads to the conjecture that tubercle 

 bacilli may have been gradually disseminated from the earlier lesion in 

 the apex. The blood-vessels are injected with blue. 



