NEW FORMATIONS IN THE HEART. TUMORS. 

 PARASITES. 



Glanders, abscess, melanosis, tubercle, polypus, naevus, parasites — echino- 

 coccus, cysticercus tenuicollis, cysticercus cellulosa, trichina, sarcocyst, 

 filaria immitis, strongylus subulatus, strongylus vasorum. 



ist. Deposits of Glanders. In many cases of glanders and 

 farcy in horses the specific product is deposited in the heart as 

 well as in other internal organs. Such deposits are small but 

 numerous, infiltrating the muscular tissue ; their cut surface is 

 dry, finely granular and of a yellowish white color. 



2d. Abscesses are sometimes formed in the heart from the 

 colonization of microbes from suppurating surfaces. 



3d. Cancer of the heart has been noticed chiefly in dogs by 

 Leblanc. It occurs only consecutively to cancer in other parts of 

 the body, yet it has sometimes acquired considerable dimensions 

 and interfered materially with the movements of the heart. 



4th. Melanosis of the heart has been repeatedly noticed in the 

 horse. Some if not all such cases should be classed with cancers, 

 as these internal deposits of black coloring matter in solipedes, 

 have, in our experience, mostly possessed malignant characters, 

 though they are usually simple tumors as developed in the skin of 

 the horse. These black masses usually project beneath the pericar- 

 dium or endocardium. 



5tli. Tuberculous deposits have been met with in the sub- 

 stance of the heart in cases in which the lungs or other organ were 

 the seat of this disease. 



6th. The fibrous growths or polypi due to the deposition and or- 

 ganization of fibrinous material from the blood have been referred 

 to under endocarditis. 



7th. Gamgee reports the existence of a vascular tumour of the 

 right ventricle of a horse in the museum of the Turin Veterinary 

 School. It consisted of varicose veins ramifying beneath the en- 

 docardium which in its turn was healthy. 



8th. The parasites found in the heart are various, a. One, 

 the Echinococcus Veterinorum, has been repeatedly found in 

 the substance of the heart or projecting from its inner or outer sur- 



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