352 Veterinary Medicine. 



Forced dilatation, or even careful incision at several different 

 points of the circumference of the stricture may give good 

 results in certain cases. 



INTESTINAL INVAGINATION. INTUSSUSCEPTION 

 IN SOLIPEDS. 



Definition. Seat : ileum into caecum, rectum through sphincter, duode- 

 num into stomach, floating small intestine into itself, caecum into colon. 

 Lesions : blocking, or tearing of mesentery, dark congestion, peritoneal ad- 

 hesions ; incarcerated gut, necroses, sloughing of in vagination . Symptoms: 

 colics of obstruction, enteritis, and septic infection, eructation, emesis, ten- 

 esmus, signs of sepsis and collapse, death in seven hours or more, or recovery 

 by disinvagination or sloughing. Diagnosis : by rectal exploration or pass- 

 ing of slough. Treatment : oily laxatives, demulcents, enemata, mechani- 

 cal restoration of everted rectum, laparotomy. 



Definition. The sliding of one portion of an intestine into a 

 more dilated one, as if a few inches of the leg of a stocking were 

 drawn within an adjoining portion which is continuous with it. 



Seat. It is most commonly seen in the inversion of the small 

 intestine into itself or into the caecum, or next to this the pas- 

 sage of the rectum through the sphincter ani, to constitute 

 eversion of the rectum. It would appear to be possible at any 

 part of the intestinal canal in the horse, in which the bowels are 

 more free to move than they are in ruminants. Peuch records a 

 case of invagination of the duodenum into the stomach and 

 Cadeac gives a woodcut of such a case, which one would suppose 

 the fixed position of the duodenum would render impossible. It 

 is conceivable that the jejunum could be invaginated into the 

 duodenum, and that this should have continued until it extended 

 into the stomach, but it is difficult to see how the duodenum it- 

 self could have passed into the stomach without tearing itself 

 loose from its connections with the pancreas, liver and transverse 

 colon. 



Schrceder, Serres and I^afosse describe cases in which the small 

 intestine was everted into the caecum and thence through the 

 colon and rectum until it protruded from the anus. 



The invagination of the floating small intestine into itself is 

 common at any point, and extensive and even repeated. Marcout 



