SPLEEN—KIDNEY. 107 
What is said of the changes of tubercular and syphilitic splenitis ? 
The lesions are similar to those common to these types of inflam- 
mation. 
Describe other inflammations of the spleen. 
There may be a pert splenitis either acute, with the formation of 
fibrin and pus upon the surface of the organ, with more or less peri- 
tonitis, or the process may be chronic, with an increased production of 
connective tissue in the capsule producing a thickening. 
What changes take place in the spleen in leukemia and pseudo- 
leukemia ? 
The changes are the same in both conditions. Usually the spleen is 
enlarged, and on section may be red, or mottled red, and gray. The 
minute changes are about the same as in acute hyperplastic and chronic 
interstitial splenitis. 
What are the degenerative changes in the spleen ? 
Atrophy. The parenchyma cells being decreased in number. 
Amyloid degeneration, especially of the Malpighian nodes. 
Pigmentation. 
What tumors have been found in the spleen ? 
Primary tumors are rare. Small fibromata, angiomata and sarco- 
mata have been found, but sarcomata and carcinomata usually occur as 
secondary growths. 
THE URINARY ORGANS. 
KIDNEY. 
What are the different forms of inflammation of the kidney ? 
Acute and chronic nephritis. 
Suppurative nephritis. 
Tubercular nephritis. 
Give the classification of the different varieties of acute and chronic 
nephritis. _ 
Acute congestive nephritis. 
Acute degenerative nephritis. 
Acute exudative nephritis. 
Acute diffuse nephritis. 
Chronic congestive nephritis. 
Chronic degenerative nephritis. 
