Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . partially cut off; or more orless extensive suppuration—if the plug in the vessel be derived from asuppurative focus or be septic in its origin. We usually find, therefore,that old infarctions are liable to appear pale, and to be firm and incom-pletely organized, j^rovided that the character of the ping (an embolusor thrombus) does not create suppuration ; in which case disintegration. Fig. 76—A Diacram of an Embolic Infarctio
Lectures on nervous diseases from the standpoint of cerebral and spinal localization, and the later methods employed in the diagnosis and treatment of these affections . partially cut off; or more orless extensive suppuration—if the plug in the vessel be derived from asuppurative focus or be septic in its origin. We usually find, therefore,that old infarctions are liable to appear pale, and to be firm and incom-pletely organized, j^rovided that the character of the ping (an embolusor thrombus) does not create suppuration ; in which case disintegration. Fig. 76—A Diacram of an Embolic Infarction. (After Weber.) a, artery obliterated byan embolus (f); z, vein filled with a secondary thrombus ((/i); 1, centreof the infarction,which is becoming disintegrated ; 2, area ol extravasation ol blood into the tissues ; 3, areaof collateral hyperaemia. takes place rapidly in the centre of the infarction, and an abscessresults.— embolic abscess. The more complete the obstruction, the more vascular the tissue,and the less the vessels are supported, the greater is the amount of in-farction and the more rapid the softening and disintegration that development of metastatic or * embolic abscesses^^ is one of the dis-tinctive pathological features of p3aimia, and no case can be properl}- socalled when these abscesses are not found after death. Etiology.—For some unexplained reason the female sex is morefrequently affected with cerebral embolism than the male sex. It is alsomore common in youth and adult life than in old age. Floating
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