New Formations iu the Heart. Tumors. Parasites. 479 



7th. Myxoma has been found inthehorse, in the septum ventric- 

 ulorum (Koch), in the right ventricle (I^amberiucchi) and in the 

 left ventricle (Essmann). In cattte this forms polj^oid masses 

 in the vena cava, and right auricle (Yemgers, Blamberg, Hess, 

 Gamgee) and in the right ventricle (Guimberteau, Germain). 

 These are irregular in outline, sometimes pediculated, of 

 variable color, a yellow, gray or black, and with a nucleus of a 

 gummy, old cheese, or lardaceous consistence. 



8th. Myoma. Husson records a case of this kind in a two- 

 year-old colt, the fleshy excrescences growing from the tricuspid 

 valve. Jungers found a polypoid, pediculated myoma in the 

 auricle of a dog-. The general composition was of elastic and 

 muscular fibres. 



9th. Cysts with serous contents were found in the cardiac 

 septum of two cows which had died suddenly (Lambreaux). 



loth. 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. 



nth. The Jiirous g-rowtks or polypi dne to the deposition and 

 organization of fibrinous material from the blood that have been 

 referred to under endocarditis. 



12th. Gamgee reports the existence of a vascular tumor of 

 the right ventricle of a horse in the museum of the Turin Veter- 

 inary School. It consisted of varicose veins ramifying beneath 

 the endocardium which in its turn was healthy. 



13th. The parisites 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 

 surface, b. Another, the cysticercus tenuicoUis, has been 

 met with in the pericardical sac of a calf (Reed), c. A third, 

 the, cysticercus cellulosa invests the muscular structure of the 

 heart of measly pigs, and the cysticercus bovis that of calves. 

 d. The heart, like other voluntary muscles of hogs, occasion- 

 ally contains trichina spiralis, e. Rainey's cysts (sarcocysts) 

 are microscopic ovoid bodies usually found in the hearts of oxen 

 and other animals. /. A round worm, filaria immitis, first 

 described as filaria papillosa hsematica by Delafond and Gruby, 

 lives in the blood of the dog, is one millimeter thick by fifteen to 

 forty centimeters long. It may obstruct the pulmonary artery 



