266 CONSTITUTIONAL DISEASES. 



The clinical symptoms have been described by Roll and others 

 as high temperature alternating with chills, constant vomiting, 

 convulsions, paralysis, coma, decrease in the temperature, and 

 death within a few days Eoll also states that dogs which have 

 suffered with hypertrophy of the prostate showed the same symp- 

 toms of this disease, but they were produced gradually and the 

 symptoms were not so acute. In such cases we find dulness, dis- 

 turbance of the intestinal canal, and convulsions. 



Scurvy. 



It is doubtful if true scurvy occurs in tiie dog — that is to say, 

 a hemorrhagic diathesis marked by a spontaneous bleeding of the 

 cutaneous and mucous membranes,and also from the muscles, joints, 

 etc. Siedamgrotzky described a case of a two-year-old dog which 

 died suddenly with symptoms of hemorrhage of the brain after 

 being under treatment for four days. Numerous hemorrhagic 

 centres were found in the skin and cellular tissues. The buccal 

 mucous membrane was somewhat swollen and filled with hemor- 

 rhagic spots. The gums were also in the same condition. The 

 intestinal canal was filled with spots of hemorrhage from one end 

 to the other, the mucous membrane of the pylorus being espe- 

 cially affected. It was much swollen by a bloody infiltration. 

 The mesenteric glands were filled with blood; the spleen was very 

 much enlarged and weighed 107 grammes. On section it con- 

 tained apparently a normal amount of blood. The liver and 

 kidneys were healthy and normal. The lungs showed small hem- 

 orrhagic spots under the serous membrane and were slightly cede- 

 matous. The heart was flabby, light in color, and contained a 

 quantity of non-coagulated blood. The frontal cavities were filled 

 with blood-clots. The dura and arachnoid upon the left side also 

 contained small hemorrhages. On the brain itself there were 

 numerous flea-like spots, especially on the base of the brain. The 

 blood on chemical examination was very deficient in salts of 

 potassium. 



Friedberger and Frohner observed a case of scurvy in which 

 there was bleeding of the gums, and nasal mucous membrane, also 

 in the retina of the eye. Friedberger found numerous hemor- 

 rhages in the cutaneous membrane of the hunting dog, in the 



