176 DISEASES OF THE DIGESTIVE APPARATUS, 



occurred on the tenth day, corresponding with an apparent ameli- 

 oration, while death only took place on the twenty-seventh day. 

 Even invagination of the csecum in the colon seems to be com- 

 patible with life.^ In very rare cases recovery may be produced 

 through elimination of the invaginated portion and the joining of 

 the two intestinal ends (Hartmann). 



Diag-nosis. This can only be established with certainty in cases 

 where the cylindrical intestinal scab resulting from the invaginated 

 segment is evacuated with the excrements. 



Treatment. It should consist in the use of remedies calculated 

 to obtain and maintain the liquefaction of the intestinal contents, 

 in order to facilitate its progress through the contracted portion of 

 the intestine. For this purpose we may give any kind of purga- 

 tive, and also frequent and abundant simple or purgative clysters. 



5. COLICS PRODUCED BY NEOFORMATIONS WHICH DIMINISH THE 

 INTESTINAL CALIBRE. 



Neofor mations of the digestive canal are quite rare, and they 

 give rise to colic only exceptionally. Their nature is extremely 

 variable. Krieger observed a polypus of the stomach which ob- 

 structed and dilated the duodenum till it rendered its rupture im- 

 minent. In the small intestine fibroma has been formed (Magri), 

 also myxosarcoma (Friedberger), myoma with smooth fibres, and 

 the submucous lipoma. Sarcomatous or cancerous neoformations 

 (Brusasco) have been met with mainly in the large intestine. The 

 mesentery sometimes contains lipomata which may compress the 

 intestine or cause volvulus.^ 



Ordinarily the intestinal contents are arrested and accumulate in 

 front of the portion constricted by the neoformation ; it then pro- 

 duces dilatation and compensatory thickening of the abdominal 

 walls. The surface of the tumors developed in them is frequently 

 ulcerated toward the intestinal canal. 



Symptoms. Persistent constipation and intermittent pains, the 

 intensity of which increases gradually, constitute the principal symp- 

 tom of these colics, which may last for years, and end in a fatal 

 intestinal obstruction. 



1 G. Colin: Recueil Vet., 1850. 



2 We must associate with these colics the same affection produced by abscess of the 

 intestinal walls or by phlegmons developing in the connective tissue of the pelvis 

 and compressing the rectum. Martin (of Brienne), Palat, Bringard, Lardet, LeBerre, 

 and a few other practitioners have reported such instances. — n. d. t. 



