114 



\ i;ii:kixarv pathology. 



Eccliy/noscs are hemmorrhagic spots larger than petecliiae and 

 less sharpl}' defined caused by ruptured capillaries or precap- 

 illaries. 



SuggiUatioJis and eiiusions are large indefinable hemorrhagic 

 areas, caused by bruising which ruptures the small vessels. 



Hemorrhagic infarction is a hemorrhage into an anemic area. 

 This is not a hemorrhage as ordinarily understood for the blood is 



noern a.\c 



— ^ 



Fik: 7!i. — Heniatiinin, causud b.v luuturt- ol' spur vi-in. 



vvithm the vessels and escapes into the anemic area because of the 

 diminished pressure. 



A hciiiatoma is a circumscribed collection of extravasated 

 blood in the tissues and is usually the result of hemorrhage 

 from an arter}'. 



SURFACE IIE^roRRIIAGE is designated according to its origin, thus: 



Efistaxis is hemorrhage from the nasal mucous membrane and 

 is quite common in acute nasal glanders. 



Hcuiatcmcsis is hemorrhage from the stomach and is ob- 

 served in animals poisoned with arsenic and those afflicted with 

 gastric ulcer or gastric carcinoma. 



Hriiioftysis \'^ hemorrhage from the lungs. It may be the 

 result of excessive exertion, abscess formation, tuberculosis, etc. 



