Diseases of the nervous system : a text-book of neurology and psychiatry . with resulting areas of softening. These areas of softeningusually show entire disintegration of the nervous elements withlarge numbers of scavenger elements about. The nerve cells showvarious grades of degenerative change dependent upon deficient nutri-tion as a result of decrease in size of the lumen of the vessels. There 756 PRESENILE, SENILE, AND ARTERIOSCLEROTIC PSYCHOSES is neurogliar overgrowth about the vessels and in the degeneratedterritories. Diagnosis.—The disease most apt to be mistaken for the arterio-scle
Diseases of the nervous system : a text-book of neurology and psychiatry . with resulting areas of softening. These areas of softeningusually show entire disintegration of the nervous elements withlarge numbers of scavenger elements about. The nerve cells showvarious grades of degenerative change dependent upon deficient nutri-tion as a result of decrease in size of the lumen of the vessels. There 756 PRESENILE, SENILE, AND ARTERIOSCLEROTIC PSYCHOSES is neurogliar overgrowth about the vessels and in the degeneratedterritories. Diagnosis.—The disease most apt to be mistaken for the arterio-sclerotic psychoses are paresis and the psychoses of cerebral syphilis,which should be considered together now that the etiology of paresishas been so thoroughly established. The reason for the possibilitiesof mistake is dependent upon the fact that both processes are more orless diffuse, producing a progressive mental deterioration, and thatboth processes tend to be more severe at certain points and thus pro-duce focal symptoms. Syphilitic and metasyphilitic disturbances. Fig. 316.—Widely distributed arteriosclerotic softenings; patient aged seventy-twoyears. There were also numerous softenings in the basal ganglia. Brain greatlyshrunken. It can be seen from the distribution of these lesions how the clinical picturemight simulate paresis. occur as a rule at a much earlier age than the arteriosclerotic, generallynot later than the fourth decade, while the arteriosclerotic period isnot entered until the fifth decade. When an arteriosclerotic has hadsyphilis also the differentiation becomes more difficult. The Was-sermann of the cerebrospinal fluid, however, would be negative, whilewith large areas of softening on the surface of the cerebrum therewould be considerable evidence of disintegration products in thecerebrospinal fluid. On the mental side the preservation of thenucleus of the personality is much more in evidence than in —In a general way the treatmen
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