THE PSEUDO-TUBERCULOSES 347 



The Pseudo-tuberculoses. 



In addition to the tubercle bacillus there is a certain number of other pathogenic 

 organisms capable of producing tubercles in the tissues. 



The bacillus of leprosy and of glanders both lead to the formation of true tubercles. 

 In connexion with the Dlscomyces it will be seen that some of the members of that 

 group produce pseudo-tuberculous conditions in man and the lower animals. 



Finally some bacteria give rise to lesions so closely simulating those produced by 

 the tubercle bacillus that they may be mistaken for tuberculous lesions. These 

 pseudo-tuberculous lesions may be classified into two groups, namely the zoogleic 

 pseudo-tuberculoses of Malassez and Vignal, Chantemesse, and others : and the 

 bacillary pseudo-tuberculoses of Charrin and Roger, Dor, Courmont, and others. 



The descriptions given by different authors do not at all coincide : perhaps they 

 relate to a number of varieties of the same organism. It must suffice to have 

 recorded the existence of this group of organisms : a description of them is beyond 

 the scope of this work. 



[The disease commonly known as pseudo-tuberculosis in guinea-pigs and rabbits 

 is briefly described at p. 160.] 



