216 



VET1-:RI NARV PATHOLOGY. 



Stringy, pulpv substance from which varying <|uantities of mucus 

 niav l)e expressed. 



The mucoid changes niav affect circumscrii)ed local areas that 

 appear moist and soft, sjiongv, or even cystic in contradistinction 

 to the surrounding normal tissue. 



Microsco/^ic. — Mucus appears as a stringy substance containing 

 varving quantities of detritus. Fixing agents coagulate mucin 

 in which case it a])|iears as a more or less homngeneous mass 

 containing nian\- fibrillae or threads of coagulated material. 



Fig. lUi. — Mucoid Degeneration. 



a. Fibrous tissue. c. Mucoid cells. 



b. Mucous substance. 



Alicroscopic ap])earancc of a tissue affected with pathologic 

 mucoid changes is variable according to the extent of the pro- 

 cess l)ut in general the picture observed is the same as that of 

 the normal tissue plus the mucus. 



Tissue Affected. — Epithelium and the cells and intercellular 

 substance of connective tissue as well as some timiors are sub- 

 ject to muciiid changes. 



Effects. — The effects depend upon the extent, duration, and 

 regenerative ability of the affected tissue. 



