362 OPEBATIOKS ON THE DIGESTIVE APPAEATUS. 



both the superficial and the deep anatomical structures of that 

 region, wiH at once suggest the difficulties to be encountered in 

 the numerous and important blood vessels, which must be either 

 avoided or ligatured, and the important nerves which must be 

 saved According to Brogniez, the operation is fully justified by 

 its results, and possesses an undeniable claim to admission into 

 the domain of authorized veterinary surgery. After Leblanc, it 

 was performed by Brogniez, Vanhaelst, Delwart, Barlow and Per- 

 civall. 



The Traite de Chirurgie VHirinaire furnishes the following 

 description of the manual execution of parotid adenotomy : " The 

 animal, being well prepared, is thrown, with the parotid region 

 of the side on which he hes resting on a small bundle of straw, in 

 order to render the gland, which is to be operated upon, more 

 prominent, and the hair being clipped, a long incision is made in 

 the direction of the organ, viz., from the anterior part of the base 

 of the ear down to below the glosso-f acial branch of the jugular veia. 

 This first incision, it may be remarked, must be made more to the 

 anterior border of the gland, which is strongly adherent to the 

 maxillary bone, as well as to the blood vessels and nerves passing 

 that point, and, if necessary, a second iacision can be made be- 

 hind the first and perpendicular to its lower extremity. The skin 

 being dissected from the whole extent of the gland, the beginning 

 of the separation of the organ is made near the facial nerve, from 

 thence gradually working dovynward. The lower extremity of the 

 gland is isolated, and after it the posterior border, to terminate 

 by the superior extremity, which surrounds the concha — in other 

 words, without reference to the muscular layer that covers it, or 

 to some little glandular masses which are isolated from the prin- 

 cipal mass, nor even to its central portion situated under the fa- 

 cial branch of the jugular vein ; the gland being thus separated 

 is removed in its whole circumference. After ligating the blood 

 vessels which may have been opened, the wound is dressed and 

 closed with quiU sutures. Suppuration is soon estabUshed, the 

 granulations rapidly develop themselves, and the cicatrization is 

 soon accomplished." 



The most serious compUcation usually met with is the section 

 of the facial and sub-zygomatic nerves, which is followed by par- 

 alysis of the face and Hps on that side. Director Degives divides 

 the operation into three steps. The first includes the incision 



