384 Veterinary Medicine. 



there is an adenoid thickening of the bands of connective tissue 

 extending in from the capsule. These are filled with white cells 

 which stain deeply with carmine. There may also be slight ex- 

 travasations of blood and infarcts. 



Lesions in the Bone Marrow. These noticed in the pig by 

 Fiirstenberg, and in dogs by Siedanigrotzky, consist in increased 

 vascularity, great cell hyperplasia, and formation of adenoid tissue 

 as described under leukaemia. 



Lesions of the Intestine. These commence in the agmina- 

 ted or solitary glands, which become enlarged, causing thicken- 

 ing of the mucous membrane, and later grow out into more or 

 less rounded masses of lymph — adenoid tissue up to an inch in 

 thickness. They are quite subject to ulcerations. 



Lesions of the Tonsils. Bollinger, Nocard and Siedam- 

 grotzky found these enlarged in dogs in connection with adenoma 

 of the spleen. They were soft, friable, grayish, and consisted of 

 a very delicate and fragile adenoid tissue. 



In one case Siedanigrotzky found adenoid hypertrophy of the 

 thymus in a cow, and adenoma of the kidneys similar to that of 

 the liver has been noticed. 



Similar adenoid hyperplasia has been found in the lungs, the 

 bronchial mucous membrane, the pleura, the mediastinal and 

 bronchial glands, and the pericardium. In man this has invaded 

 the nerve centres, and it seems that at any point where there is a 

 lymph gland or a lymph plexus this adenoid hyperplasia may 

 localize itself. 



Symptoms. The general symptoms of failing health are as de- 

 scribed in leukaemia. The particular symptoms of this disease 

 consist in the recognition of the adenoid hyperplasia in the ab- 

 sence of a marked leucocytosis. The submaxillary glands are 

 usually the first attacked, and the disease maj^ in the horse, be 

 confounded with glanders. There is, however, no pituitary dis- 

 charge nor ulcer, the glands are enlarged symmetrically on the 

 two sides, and a careful search will usually discover other groups 

 with similar symmetrical enlargement. The parotidean, the 

 pharyngeal, the prepectoral, the prescapular, the axillary, the 

 popliteal, the prefemoral, the post and premammary, and the 

 inguinal should be critically examined. The enlarged mesenteric 

 glands may be reached and detected by the hand engaged in the 



