Diagnosis. Treatment. 53 



channel by a powerfnl attack of cough. Holterbach observed 

 complete aphonia in a head of cattle with a tnbercnlons tumor 

 in the larynx. Nasal discharge, sometimes streaked with blood, 

 is not uncommonly present. Tumors situated in the anterior 

 portion of the larynx in smaller animals can be immediately 

 seen; in horses, however, the inspection of the larynx must 

 be made with the rhinolaryngoscope, or they may be felt in 

 horses and cattle with the hand introduced into the pharynx. 

 (Horses must be laid down before manual exploration; a pre- 

 liminary tracheotomy is indicated to avoid the danger of suffo- 

 cation.) A swelling in the external aspect of the larynx is seen 

 very rarely, aiid theh' only in laryngeal tuberculosis. 



Diagnosis. Tlie presence of tumors in the larynx can be 

 ascertained beyond doubt only by an internal examination of 

 the larynx; suspicion is, however, strongly aroused by the 

 afebrile, chronic course, by dyspnea, coming on in attacks or 

 gradually, with increasing intensity, occasionally accompanied 

 by difficulties in deglutition, by stenosis sounds, by convulsive 

 paroxysmal cough which sometimes relieves the dj^spnea, and 

 finally by non-tender swelling adherent to the skin on the out- 

 side of the larynx, with the signs of laryngeal stenosis! Some- 

 times it may be necessary to perf oirn. ;Ia!ryhgot6iiiia ^ jnter- 

 cricothyroidea (Plosz). ''''''' " ' '•'' 



■' Treatment. The difficulties of respiration can be rebeved 

 only by operative procedure. Pediculated neoplasms, or sitcA 

 at least as are not spread out over a large surface, may, aft'et 

 a preliriiinary tracheotomy, be removed with the ecraseur in- 

 troduced through the pharynx. (Almy removed cystic tumors 

 of the epiglottis in this manner, in two horses.) The extirpa- 

 tion of flat, spreading neoplasms, or of those situated more pos- 

 teriorly, requires laryngofissure. In actinomycotic tumors in- 

 ternal treatment with iodide of potash may be tried. 



Y^'ii^^>'liiWi^t^iaii Holterbach, D. t. W., 1906, 541.— L. May, B. t. W.; IQOS.^Ojrkii- 



ii:.';.' 'to'icf Imnliifi 'lisdi 'lo fjaddo': 'id xloiriv;' sinm'mB lo 



T ■^ ''otoTlc Y^jnsrjpsil: eie'^ ^' juiBeds x^ 



.J ' /nla loilii q^sfla ,: 'ivhb fyiBil 



lo ydiJii-j •[^di'iij'i xj ai li^ boj^i.n'i.'-.jiiuL k- ■'■ ■■■'"•' 



01 B -tooqae-i aidi nl afjOTegrisb Yf^fi^^Q*!^^ 

 9lG'iion9q iino Y9di sfgfJBoad ,aeibod anossb,. » > h^^n^i., /_.-^au 

 -hoqxo 8^ isiiiiodisJ. .99ii f Jiirfono'id edi 'lo al'iisq leqesb eill olnr 

 Xiqosb »lB*il9fr9q riBo isub sldfilQ'gsv Ifirll nwoda evBd aln9xn 

 larrb Ix^tgM .n9mrif isirlDfio'id 9ill ni smil ^nol b -io^ niBm9'i bnjs 

 eiB blifom ^0 S9'roq8 .iIiifitBO oinoiifo 99rjboTq ol iqB s'lom ai 

 ,h99l bolioqa to vtaufit ^yblffoift 'lo noil89'ftiii edi -giii'iub bolBdai 

 .iBfrnsni ;^: -1 rr? h9orrboiq 9d Y,^m dTtniBO oinoB hb bnB 

 ■iiii 9rft olni ly Idv/ 89ibod bifoa IlBma -lo eAnul"^ 



i^5 



