ABSCESS OF THE KIDNEYS. 167 



in the liver, pancreas, and intestines. Rabe only saw one case 

 where the kidney was the only organ affected. He observed, as a 

 rule, the liver was also affected. 



Pathological Anatomy. A kidney thoroughly affected with 

 amyloid disease is slightly enlarged, hard, smooth, and shows at 

 the intersections a deep yellowish-white coloration, easily distin- 

 guished on section. The glomeruli are dull, glairy in color. 

 On staining with Lugol's solution the affected parts are colored 

 a mahogany brown, and with methyl are colored purple. 



Clinical Symptoms. Rabe made the following observations : 

 Where the kidupy was the only portion affected the animal was 

 emaciated, the temperature 35.9°, the pulse 72. The extrem- 

 ities were dropsical, complete loss of appetite, coma, and death. 

 M^here the liver was affected the animal was unsteady and weak, 

 paleness of the mucous membrane, temperature 38°, ascites, 

 appetite good. Where the kidney and liver were affected there 

 was great weakness, indifference, unsteady gait, temperature 39. 6, 

 pulse 96, respirations 50, appetite good, and the urine was acid 

 and free from albumin. 



With the above symptoms, which are rather meagre and liable 

 to be very difficult to distinguish from other diseases, it still might 

 be a guide in making a diagnosis. (In man in this disease there 

 is always more or less albuminuria.) 



Therapeutics. The treatment consists in following what is 

 described in nephritis. 



Abscess of the Kidneys. 

 {Suppurative Nephritis; Pyelonephritis.) 



Etiology. The direct cause of the formation of abscess of the 

 kidney is from direct injury of the kidneys or in the region of 

 them, causing the formation of purulent abscess in the urinary 

 passages, the bladder, the urethra, or the pelvis of the kidney. 

 In certain conditions it is associated with ulcerous endocarditis. 



Pathological Anatomy. Purulent nephritis occurs in various 

 forms, according to its origin. When they are caused by an em- 

 bolus they appear in the shape of small spots, which are easily 

 distinguished by the naked eye. When a section is made through 

 the kidney they are grayish-yellow in color, round or oblong in 



