Tumors of the Omasum. 133 



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

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

 electricity sent through the right hypochondrium once or twice a 

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

 ma.shes 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, their increase 

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

 tractions of the muscular coat of the manifolds. They may be 

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

 become somewhat horny 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 has been recorded by Paule, 

 Kitt and Schutz as developing in the subserous tissue and form- 

 ing a layer 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. 



