2o6 Surgical Diseases and Surgery of the Dog 



Treatment. Bleeding from slight lacerations can be controlled 

 by direct pressure or thermo-cauterization after the abdominal 

 cavity has been opened. Severe wounds should be treated by 

 excision of the affected lobe. 



NEOPLASMS. 



Most neoplasms of the liver are malignant and secondary, the 

 latter consisting of carcinoma and sarcoma. Jnnocent growths 

 occur in the form of adenoma and cavernous angioma. Trasbot 

 has seen lipoma. Cysticerci have also been occasionally observed. 



Symptoms and Diagnosis. A neoplasm that has grown to any 

 considerable dimensions causes a noticeable change in contour of 

 the abdomen, which in females may lead to a supposition of preg- 

 nancy. Palpation will reveal the presence of a freely mobile mass 

 within the cavity. Malignant growths are accompanied with 

 cachexia and emaciation. Intraabdominal tumors can only be 

 definitely located by explorative celiotomy. 



Treatment. Only non-malignant neoplasms are eradicable, 

 and they are removed by partial hepatectomy or extirpation of the 

 whole of the affected lobe with ligation of all vessels. Hobday 

 attempted the removal of an adenoma, but the operation was un- 

 successful owing to hemorrhage. 



CHOLELITHIASIS. 



The formation of free concretions in the biliary passage is ex- 

 tremely rare. Froehner has observed and described a case in which 

 a calculus of the size of a cherry stone was found in the ductus chole- 

 dochus in an eight-year old Leonberger. In Paris and in Balti- 

 more gall stones had been experimentally produced in dogs by 

 the inoculation of weak cultures of the colon bacillus into the gall 

 bladder, thus indicating that such stones are indications of pre- 

 vious low inflammatory infection of the mucous membrane of the 

 gall bladder. 



Symptoms and Diagnosis. The symptoms vary according to 

 the seat of lodgment of the obstruction. If it lodges in one of the 

 hepatic ducts or in the ductus cysticus, colic is induced without 

 icterus, whereas if it should completely block the exit of the bile 

 by lodging in the ductus choledochus, obstruction or hepatogenous 

 icterus develops. In Froehner's case death took place within a few 



