LEUCOCYTHEMIA. 
165 
the structure corresponds to that of the lymphatic ganglions. 
These neoplasms may be in the form of masses or under the 
form of a diffuse infiltration. 
In the first case, they resemble lymphatic glands, rounded, 
rough, with smooth section, grayish or dirty white color. These 
tumors rarely break down in their centre into caseous or puri- 
form material. 
In the second case, the neoplasm consists in a diffuse infiltra¬ 
tion into the thickness of the organs, shows itself in the opening 
of the membranes or in the form of serous tracks, intersected, of 
of a dirty white color. Parenchyma looks marbled; under the 
microscope, there is found a deposit of round cells huddled 
together without apparent order. When these cells are washed 
out, a network of adenoid tissue, characteristic of adenoid tissue, 
is left behind. 
The most remarkable characteristic of these lesions is the ab¬ 
sence of all breaking down of the cellular elements in the central 
part of the neoplasm. This will serve to distinguish them from 
the lesions of glanders, tuberculosis and scrofula. 
Hypertrophy of the spleen is the most frequent lesion of leu- 
cocythemia. It exists in four-fifths of the cases. It generally 
conserves its form ; or it may be stuffed with lymphatic tumors, 
which causes it to assume an irregular form. 
Lymphatic ganglions are almost universally enlarged in our 
patients, whilst in the human being in only about one-half of the 
cases are the glands enlarged—they generally retain their form. 
Their section is white or a little greyish, the structure is homoge¬ 
neous, neither softening, nor pus, nor caseous degeneration even 
in the largest. 
In the intestines they may be found in two principal forms, 
and may arise from the lymphatic elements of the intestines, the 
solitary follicles, or Peyer’s patches, and have the appearance of 
white tumors, rounded or flattened, varying in size from a pea to 
a child’s head. They result simply from hypertrophy of the pre¬ 
existing lymphoid organ. Sometimes they are enveloped in the 
thin layer of sub-mucous reticulated tissue, without regard to the 
presence of solitary or aguminated follicles. The microscope 
