DISEASES OF THE LYMPHATIC TISSUES 129 
iniiltration (1), states that it is comparatively rare among 
tiie domestic animals, where it may appear under the 
usual conditions or as a primary affection; it seems at 
times to follow unsuitable feeding. According to this 
author, the "sago" type is more common than the 
**bacony;" this has not been our experience. The most 
conspicuous example is given here. 
European Badger {Meles meles) Adult 9. Gradual failure for two 
weeks. 
Diagnosis. — Amyloidosis. Chronic parenchymatous nephritis. 
Emphysema of lungs. 
Muscles atrophic ; fat scanty. Heart is dilated and muscle is 
red broAvn. Aorta is jaundiced and there is a small patch of atheroma 
near the anterior leaflet of aortic valve and about 5 mm. above it. 
Abdomen contains a slight amount of clear fluid, no adhesions. Liver 
is normal in size, smooth surface, sharp edges, firm consistency, yellow 
color. The section surface is glistening, smooth and moist. The spleen 
is very hard, greatly enlarged (25 x 6 x 2 cm.) and lies across the abdo- 
men over the intestines. It is pale red and very bacony. In iodin the 
tissue stains a mahogany brown. The kidney is normal in size. {bVz x 3 
cm.). The capsule is smooth and strips easily leaving a smooth, yellow 
surface. Organ is firm. The section surface is glistening, has a relatively 
narrowed cortex and relatively wide medulla. The glomeruli are barely 
visible but stain a mahogany brown in iodin. The adrenals are 12 xlO x 4 
mm. The cortex is wide, dull yellow and regular. The zone beneath 
fades into the cortex although rather abruptly. The centre of both 
glands is occupied by an irregular pale yellow, sharply outlined nodule 
suggestive of solid medulla, tubercle or tumor. The zone between cortex 
and this is gray, irregular and firm. This is practically a normal figura- 
tion. The stomach is empty, mucosa apparently normal. Intestines 
were not opened but serosa seems normal ; when opened after Kaiserling 
fixation they seem normal. The pancreas is normal in size, firm and 
pale. Lymphatics of the mesentery are slightly enlarged, soft, homo- 
geneous pale yellow. 
Histological Notes. — Lung seems somewhat atrophic and there are 
some vesicular ruptures. One small patch of amyloid found in blood 
vessel wall. Liver shows slight capillary congestion and granularity 
of parenchyma. There is a marked blood vessel amyloid deposit not 
only in interlobular spaces but in intralobular capillaries. Spleen, no 
trace of splenic tissue recognizable in section. It is composed of more 
or less eosin-staining material surrounding single, or small collections 
of round or plasma cells. Kidney shows marked amyloidosis of glomeruli 
and slight deposit in blood vessel walls and in the increased connective 
tissue. There is a general moderate fibrosis; irregular tubules; low 
(1) Lubarsch-Ostertag, Ergeb. aus der Allg. Path., 1908. 
