8io Actinomycosis 



When inhaled, the organisms enter the deeper portions 

 of the lung and cause a suppurative broncho-pneumonia 

 with adhesive inflammation of the contiguous pleura. After 

 the formation of the pleuritic adhesions the disease may 



Fig. 268. Section of liver from a case of actinomycosis in man 

 (Crookshank). 



penetrate the newly formed tissue, extend to the chest- 

 wall, and ultimately form external sinuses; or, it may 

 penetrate the diaphragm and invade the abdominal organs, 

 causing interesting and characteristic lesions in the liver 

 and other large viscera. 



