3. Valvular lesions and chronic nephritis occur in the same persons, but neither can be said to depend upon the other.
The arteries are often diseased, the aorta and the arteries throughout the body. There may be a simple sclerosis and thickening of the wall of an artery, or endarteritis deformans, or obliterating arteritis.
Cerebral apoplexy may occur with all the varieties of chronic diffuse nephritis, but much more frequently with atrophied kidneys.
Thickening of the pia mater, with increase of serum beneath it, is often seen.
Dilatation of the lateral ventricles of the brain sometimes occurs, and may give rise to cerebral symptoms.
Pericarditis is seen more frequently with the atrophied kidneys.
Pneumonia is especially apt to be fatal when it occurs in persons already suffering from chronic diffuse nephritis.
Emphysema and chronic bronchitis are often associated with the atrophied kidneys.
Phthisis is found with all the varieties of chronic nephritis.