Pathology Delafield and Prudden 



Plate XII. 



Chronic Pulmonary Tuberculosis with a Fibrous-Walled 

 Cavity at the Apex. 



The fibrous wall of the cavity is dense and is continuous with the 

 greatly thickened pleura and with the diffuse new-formed connective 

 tissue throughout the upper lobe. The upper lobe is greatly reduced in 

 size by the cicatricial contraction of the fibrous tissue. The lower lobe 

 shows two areas of tuberculous consolidation ; both are caseous in the 

 central portions; the upper shows commencing tuberculous bronchiec- 

 tasia. The upper part of the fibrous wall of the cavity, firmly adherent 

 to the thoracic wall, has been cut away. 



