NEOPLASMS IN THE STOMACH 105 



Treatment.— No satisfactory treatment can be given for 

 those parasites living within the tumor masses or burrows 

 in the mucous membrane. When such parasites are diag- 

 nosed, all the affected individuals should be removed and a 

 thorough cleaning given all the houses, runways, and grounds 

 to which they have had access. (For ascarides and taenia see 

 Parasites of the Intestines.) 



NEOPLASMS IN THE STOMACH. 



Tumors in the stomach especially primary growths are 

 very seldom found in small animals. Occasionally secondary 

 carcinomas or sarcomas occur. 



Symptoms.— The symptoms observed are very similar to 

 chronic gastritis (see Chronic Gastritis). The growth of the 

 tumor is often sufficient to increase the size of the abdomen 

 and can usually be palpated through the abdominal walls. 

 Other symptoms are persistent vomiting, icterus, and loss 

 of appetite. When a tumor of the stomach is suspected 

 laparotomy should be performed and a direct examination 

 made. 



Prognosis . — Unfavorable . 



Treatment.— No attempt should be made to operate malig- 

 nant- growths. Tumors involving the anterior part of the 

 stomach are inoperable owing to the location and close attach- 

 ment of the stomach. Fortunately, however, tumors of the 

 stomach usually involve the pyloric end, and in such cases 

 gastroduodenostomy should be performed removing the 

 entire part involved. Gastroduodenostomy must be per- 

 formed with considerable care to prevent infection from 

 the stomach contents and hemorrhage from the large vessels, 

 and also to so place the ligatures as to avoid cutting off 

 blood supply from any part of the stomach not removed. 

 The modus operandi is as follows: Thoroughly anesthetize 

 the animal and secure in the dorsal position. Cover the 

 field of operation with sterile cloths and provide plenty of 

 suture material (linen machine cord No. 40) and medium- 

 sized, straight sewing needles (Emmet's bowel needles). 

 Perform laparotomy at the median line from the xiphoid 



