Hemorrhage. 



123 



is more or less sharply circumscribed. Upon surfaces or in the 

 body cavities the extravasation presents a striking picture, in 

 profuse, partly coagulated, partly fluid masses, or in a gelatinous, 

 red, jelly-like tumor ex- 

 tending into the loose sub- 

 cutaneous or sub-mucous 

 tissue (haeniorrhage fol- 

 lowing contusions of the 

 abdominal walls, hremor- 

 rhagic stasis of the in- 

 testinal m u c o u s mem- 

 brane), or sharply outlined 

 in numerous definite drop- h 

 like flecks (not effaced on % 

 pressure) as seen in the ^ 

 sub-serous cellular tissue 

 of the pleura, pericardium 

 and epicardium. In the 

 secretions it is easily ap- 

 preciated by the more or 

 less pronovmced blood tint 

 which it imparts to them ; 

 the intestinal contents may 

 assume a slightly reddish - 

 gray, cafe-au-lait color up 

 to a chocolate brown or 

 pure blood-red from the 

 admixture of blood ; the 

 gastric contents a sepia- 

 brown, the urine a blood- 

 red to black; the expecto- 

 rate and nasal secretion a 

 rusty, red-streaked or 

 foam y red appearance 

 (pulmonary oedema). 



While it is usually easy 

 to detect the ruptured ves- 

 sel in case of massive 



haemorrhages (as a ruptured aneurism, the eroded stump of a ves- 

 sel in hemorrhage from gastric ulcers), and the infiltration of 

 blood surrounding the lesion in the organ points to the origin 

 of the haemorrhage and indicates its intravital occurrence, 



Fig. 2. 



Ilaematoma of the spleen of horse. 



