'.120 Surgical Diseases and Surgery of the Dog 



Thierry treated a dog whose chest had been ripped open by a wild 

 boar between the seventh and eighth left ribs. At each inspira- 

 tion a portion of the lung would protrude. He sutured the wound 

 with a rusty needle and dirty suture, and the animal completely re- 

 covered within three weeks. Delafond had a similar experience. 



PLEURITIS. 



(Largely translated from Gadlot and Breton.) 



Two principal types of this disease are recognized, viz., the 

 sero-fibrinous and the purulent. Both are believed to be of infec- 

 tious origin. The sero-fibrinous form is now known to be 

 most commonly associated with tuberculosis, but it is also known 

 that the disease may follow a sudden chill, such as hunting dogs 

 sometimes sustain when following their quarry into water in mid- 

 winter, or which house dogs suffer after being washed and ex- 

 posed to the cold air before their coats are sufificiently dry. Cadeac 

 places the percentage of tuberculous pleurisies at ninety. Para- 

 sitic infestation may also be responsible. Magnie attended an 

 animal which died suddenly with symptoms of vomiting and as- 

 phyxia. In the left sac he found a plastic exudate and signs of 

 pleuritis, but without effusion. A strongylus gigas which was present 

 was supposed to have excited violent contraction of the diaphragm 

 and produced asphyxia. 



The disease occurs in all ages, but most frequently about the 

 third year. Spring and Fall seem most propitious for its de- 

 velopment. 



The lesions most commonly found at necropsies are ecchymoses 

 and multiple granulations of diverse form, covered with a fibrinous 

 exudate and macroscopically resembling sarcomatous nodules. On 

 this account this type of the disease was formerly regarded as can- 

 cerous pleurisy. The tubercle bacillus is often found swarming in 

 the nodules. In acute exudations of recent origin microorganisms 

 of suppuration, particularly staphylococci are usually also present. 

 The lesions are rarely confined to portions of one pleura, but usu- 

 ally invade the whole of the sac, or the opposite sac may be in- 

 volved. The lung of the affected side is generally more or less 

 atelectasic. 



Contingent lesions are often present. There may be hydro- 

 thorax of the healthy side, pericarditis, ascites, and anasarca of the 



