INFECTIOUS ENTERO-HEPATITIS 321 
and they bind it to the other cecum or to the intestine or attach it to 
the abdominal wall. 
Fic. 72. DISEASED CECUM 
SHOWING THE ULCER- 
ATED MUCOSA. 
In these stages, the microparasite is not found. 
It seems to have done its work by destroying 
the mucous membrane and to have left the 
field for miscellaneous bacteria. 
Other portions of the digestive tract are 
notaffected. Thesecondary lesions are found 
in the liver, although in some cases they do 
not appear. The organ itself is enlarged to 
probably twice the normal size. Over the 
surface are distributed roundish, discolored 
spots, distinctly demarcated from the sur- 
rounding tissue. These may be distributed 
uniformly over the whole surface of the liver 
or they may be limited in number to a few. 
They vary from 3 to 15 mm. ih diameter. 
Several types of these spots appear corres- 
ponding to different conditions of the diseased 
tissue. We have in the early, most active 
disease process sharply defined circular areas 
of a lemon yellow, or a neutral gray or of an ochre yellow color. The 
spot is not homogeneous in structure, but made up of a delicate 
network of grayish yellow, 
dead tissue. 
In nother class of spots 
there is a mottled brownish 
color which contrasts only 
slightly with the surround- 
ing liver tissue by its darker 
color. It may contain a 
central yellow nucleus of 
dead tissue and a narrow 
outer border of the same 
character, or the border 
may be a dark brownish 
circular line. The entire 
spot has an indistinct ap- 
pearance and is flattened or Fic. 73. LIVER SHOWING NECROTIC FOCI. 
even slightly depressed below the surface. 
In some cases they 
are uniformly whitish and shade off somewhat gradually into 
