PTKWASffS OF TEGB BTOBSE. 



SPrSAL TTMOBS. 



Within the substance of the cord "rlioma or the mixed g:!i«ear«>- 

 mata. are foand to be the mogt fre<:iuent. tumors may form from the 

 Bueainges and the vertebrae, being of a fibroos or btjiiy nature, and 

 ftffeet the spinal cord indirectly by compression. In the meninges 

 we may find glioma, cancers, and psanimoma. hbromata ; aneuriims 

 ftf the spinal arteries have been dis<-'overed in the spinal canal. 



Sij'mpto'nii!. — Tumors of the spinal canal cause symptoms of spinal 

 irritati^Mi or compression of the cord. The gradual and slow de- 

 \elopment of symptoms of paralysis of one or both hind limbs or 

 certain muscles may lead to a suspicion of spinal tumors. The par- 

 alysis induced is progressive, but not usually marked with atrophy 

 of the muscles or increase^! - * along the spine. Whea iSatt 



tumor is within the spinal ci .. . ...:...: all the symptoms of myelitK 



may be present. 



T featment. — General tonics and 1-dram doses of nui vomica may 

 be given: iodid of iron or io»iid of potassium in 1-dram doses, three 

 times a day in feed, may. in a very few cases, give some temporary 

 benefit. UsuaEy the disease progresses steadily until it proves fataL 



NELKITIS, OR DTFLOOLiTION OF A XERVIL 



This is causeil by a bruise or wound of a nerve or by strangulation 

 in a ligature when the nerve is include<l in the ligation of an artery. 

 The changes in an iniiameii nerve are an enlargement, re<idening of 

 the nerve sheath, spots of extra va.sate<l blood, and sometimes an infil- 

 a of serum mixed with pas. 

 . rn,i}t(yrrhn^ — Acute pain of the parts suppliel f'V th^i nt^n-^' and 

 absence of swelling or increa.se<l heat of the part- 



TfHatnmnt. — Hyp«' - of from 3 to '^ grains of mor- 

 phia to relieve pain. __ : : _i. and rest- If it is due to an 



inclusion of a ligature, the nerve should be divided above and below 

 the ligature. 



MIOtO>LW OR TTMOR OF A XERTX. 



Xearoma may be from enlargement of the end of a ilivide*! nerve 

 or dae to fflbrous degeneration of a nerve which has been bruisetl or 

 wounded. Its most frequent occurrence is found after the operation 

 of neurotomy for fwjt lameness. an«l it may appear after the lapse of 

 months or even years. N"earoma usually develops within the sheath 

 of the nerve with or without implicating the nerve fibers. It is oval, 

 runn'- r ' — _-thwise with the direction of the nerve. 



Sij — Pain of the atfected limb or part is manifested, more 



especially after resting a while, and wh«i pressure is made upon the 

 tumor it causes extreme suffering. 



