Tmnors of the Omasum. 133 



(^ ounce), and hypodermic injections of eserine (i)/j grain), 

 veratrine (i grain), or pilocarpin (3 grains). A current of 

 electricity sent through the right hypochondrium once or twice a 

 day, will furtherbc desirable. When convalescence has set in, 

 mashes of wheat bran and middlings may be allowed, to keep up 

 the flagging vigor, and the patient should be returned to solid, 

 fibrous food by slow degrees only. 



TUMORS OF THE OMASUM. 



Papilloma. Sarcoma. Actinomycosis. 



Tumors of the omasum have been seen only as papilloma, and 

 sarcoma. 



The papillomata result from hypertrophy of the normal 

 papillae, and their general appearance resembles those of the 

 pharynx, gullet and paunch. They sometimes grow to the size 

 of the fist or larger, with a cauliflower appearance, theirincrea.se 

 and the formation of pedicles being favored by the active con- 

 tractions of the mu.scular coat of the manifolds. They may be 

 red and vascular if recent, are usually white if older, and may 

 become somewhat horn}' on the surface, but soft and friable 

 within. When they attain a large .size they may obstruct the 

 passage to the fourth stomach, tending to impaction of the mani- 

 folds and arresting digestion and nutrition. 



Sarcoma of the third stomach lias been recorded by Paule, 

 Kitt and Schutz as developing in the sub.serous ti.ssue and form- 

 ing a la5-er on the surface of the organ. This bulges out in 

 rounded swellings of irregular sizes, and may show various de- 

 generations — caseous, calcic or necrotic. The structure shows 

 fusiform and rounded cells more or less numerously imbedded in 

 a fibrous .stroma. 



