212 VETERINARY PATHOLOGY. 



and endomysium may be affected as well as the stroma of the 

 mucous membranes. The liver, spleen, and kidney are the 

 most frequent locations of the process, probably because of the 

 large number of capillaries in those organs. 



Fig. 114. — Amyloid DeDegeration, I.iTer. 



a. Livtr ctUs. b. Amyloid material. 



Effects. — The condition is so rare that it is not possible to 

 generalize upon the effects of the process. The amylaceous ma- 

 terial is insoluble in the body fluids and it is quite probable that 

 if a part becomes affected, it remains so permanently. 



HYALINE CHANGES. 



DEFINITION. 



ETIOLOGY. 



APPEARANCE. 



Macroscopic. 



Microscopic. 

 TISSUE AFFECTED. 



Vessels. Muscles. 

 EFFECTS. 



This is a pathologic condition characterized by the conversion 

 of the cell substance into a homogeneous material called hyaline. 

 In the phenomena accompanying the physiologic changes of the 

 corpus luteum of pregnancy, a hyaline substance is produced. 

 The physiologic formation of hyalin, aside from that produced 

 in the corpus luteum of pregnancy, has not been recorded. 



The formation of hyalin is quite common in the muscular 



