Hcsmangioma. 



363 



lary bodies of the root of the tcail. Similar teleangiectases are more 

 frequently recorded as occurring- in the nasal septum in the horse 

 (Liipke, Hofmann, Diegendesch, et al), appearing as superficial 

 red or bluish-red, smooth, easily bleeding areas. 



The very common capillary teleangiectases in the bovine liver, 

 multiple purplish-red or Ijluish-rcd spots showing through the Glis- 

 sonian capsule, and appearing as finely spongy, bloody areas in 

 section, are to be regarded according to the studies of Stroh as due 

 to passive hyperaemia (pressure by the paunch in tympanites). 



The second type of angioma above mentioned is the cavernous 

 angioma of the human liver, occurring in similar' forms in the cow 

 and horse. A system of blood spaces is formed in the liver, com- 



r' 



/ 



V 



^ 



^ 





(1 



H 



:,.^)Ki' 



■w^ 



^-^^■ 



Fig. 100. 

 Portions of an angiomatous liver of a horse. 



parable to the erectile tissue of the penis or to coarse sponge, with 

 cavernous passages of very irregular width and varicose, interrupted 

 by projecting ledge-like bands of connective tissue. The area, recog- 

 nizable from the external surface by the superficial dark red eleva- 

 tions and the increased volume of the involved lobe of the liver, is 

 not sharply outlined, and contains quantities of tarry blood and fre- 

 quently also firm laminated clots. Between the connective tissue 

 septa islets of liver structure sometimes persist. The whole appear- 

 ance gives one the impression of a bunch of distended veins, dilated 



VERSITY J 



OF 



