740 SPORADIC DISEASES. 



most probably in tlie spleen, giving rise to the colicky symptoms. 

 The animal died a few days afterwards, and a hard lymphomatous 

 tumour twenty -five pounds weight was found in the spleen, in- 

 volving walls of stomach, duodenum, &c. 



I carefully examined the blood of this animal, and found there 

 was scarcely, if any, increase in the white corpuscles (leukaemia), 

 a condition sometimes associated with hyper-development of 

 lymphatic tissue. 



I have met with several cases in wdiich the lymphatic glands 

 in various parts of the body, but more particularly in the 

 cervical and subcapular regions, have been enlarged, with de- 

 velopment of lymphatic tumours in the spleen and liver. 



The same kind of growth is also found associated with farcy, 

 and in the case from which the illustration was obtained the 

 liver weighed thirty-five pounds, being studded throughout with 

 the white tumours shown in the figure. 



Fig. 43. 



The development of lymphadenomatous growths, although 

 found associated with farcy, is not to be considered as due to 

 the presence of the glanderous poison, as they frequently occur 

 when there is not the slightest suspicion of malignant disease. 



Lymphadenoma, for a long time confounded with tubercle, 

 differs very materially from that product; in fact, whereas 

 tubercle rapidly undergoes degeneration, lymphoma has little or 

 no tendency to retrograde. Microscopically lymphoma consists 

 of a delicate network of fibres, within the meshes of which are 

 contained numerous cells — lymph corpuscles. In the early 

 stage of the growth the number of cells is very great, and 

 many of the cells may contain two or even more nuclei, but in 

 a more advanced stage the proportion of cells is smaller, and 

 the reticulum forms most part of the growth. 



The physical characters, according to Green, vary according 

 to the rapidity of the growth. The rapidly growing forms, in 



