240 



\'eti:rixar\- pathology. 



movement of food-stuff through the canal and may completely 

 obstruct it. Appendicitis in the lunnan is frequently a result of a 

 fecal concrement in the vermiform a])])endix. These concrements 

 occur most frequentlv in the horse, dog and cat. They are usu- 

 ally composed of cellulose in the horse, of bones and bone frag- 

 ments in the dog and cat. The large intestine is the usual loca- 

 tion of them in the horse and the small intestine in the dog or 

 cat. Maxwell reported a case in which alfalfa accumulated in 

 the large intestine of a horse, the concrements being trom IT}^ 

 to 2'iJ2 cm. (T to 9 inches) in diameter. The fine hair of 

 clover or oats frequentU- accumulates and forms concrements. 

 The results of fecal concrements depend upon either mechanical 

 interference in the passage of intestinal contents, erosion of the 

 intestinal mncinis memlirane or ])crforatinn of the intestinal wall, 

 or a CI imbination of two or more of the abo\-e. 



Inspissated Bile. — If the outflow of liile is obstructed it will 

 becrime condensed nr inspissated to a degree de]iending upon 

 the length nf time of obstruction. Inspissation of ])ile frefpientlv 

 occurs. Tlie animals most frec|uentl\- aft'ectcd arc the ox and 

 hog. An ox liver, containing several c(jncrements cnmptjsed of 

 inspissated 1)ile in the interlobular ducts, was recently presented 

 to the Kansas Cit^- \'etcrinar\- College museum, tiile in this 

 conditiiin ma\' form masses which in general appearance resem- 

 ble liiliarA' calculi. It is sometimes impossiljle to differentiate 

 bi!iar\- calculi fr( ni inspissated l)i!e. and, in fact calculi are 



1. iDspihsated inis 



1-2S. 



Inspissated pus 



guttural iM.iucb, horsf. 



