Suppurative Hepatitis. 497 



evitable result, yet recoveries may ensue after rupture into the 

 colon or through the abdominal walls. If the seat of the abscess 

 can be ascertained its evacuation through an aspirator and the 

 subsequent injection of an antiseptic would be appropriate. 

 The concurrent use of antisuppurants like hyposulphite of soda, 

 or sulphide of calcium would also be in order. 



Causes in Cattle. Hepatic abscess is much more frequent in 

 cattle, and is commonly a result of perforation b}^ sharp pointed 

 bodies (needles, pins, nails, wires, etc. ) from the reticulum and 

 rumen, or of parasites, or biliary calculi. Other cases are 

 occasioned by the presence of tubercles, actinomycosis, or 

 omphalitis. 



Lesions i?i Cattle and Sheep. Secondary abscesses are usually 

 multiple and disseminated through the organ, though Cadeac 

 says they are more common in the left half. Thej' vary in size 

 from a bean to a pigeon's ^ZZ^ project often from the surface, and 

 contain a viscid, creamy, yellowish or greenish pus. Abscesses 

 dependent on foreign bodies often attain a great size, so as to 

 contain a pint or quart of pus (Landel). They may make their 

 way through the diaphragm, rumen, or abdominal wall leaving a 

 thick cicatrix in the liver, or they may become slowly absorbed 

 and dry up into a putty-like or cretaceous mass. Brusaferro 

 found hepatic abscesses in lambs twenty to thirty daj's old — 

 probabl}- of omphalic origin. 



Symptoms in Cattle are usually ver}' obscure. Fever, shiver- 

 ing fits, jaundice, indige.stion, diarrhoea or dy.senter}'. emacia- 

 tion, colics, tender right hypochondrium, and peritonitis may all 

 be in evidence but the diagnosis is little better than a guess. 



Treatment when possible at all would be on the same lines as 

 for the horse. 



Causes in the dog. According to Cadeac these are mostly 

 foreign bodies (needles, pins, etc.) which have been swallowed, 

 tumors of the liver or adjacent organs, phlebitis and thrombosis 

 of the portal vein, pyaemia, septicaemia, and external injuries 

 (kicks, blows, contusions, falls, etc.) 



Lesions in the dog. As in the other animals traumatic ab.scess 

 is usually solitary and large, secondary ^hsa^ss multiple and small. 

 The pus developed around a foreign body is reddish, greenish and 

 foetid, that of the metastatic abscess is usually whitish or yellowish 

 and with a sweet odor. 



