Manual of pathological anatomy . parts of the encephalon may present apoplectic effusions, butthe parts most frequently affected are the anterior lobes, and espe-cially the vicinity of the corpora striata. As a rule the greystructures, including the convolutions of the brain,* exhibit thegreatest proclivity to the affection, which is in consonance withthe known vascularity of these tissues. The structures mostremoved from the grey matter, as the corpus callosum and thefornix, are least liable to it. Apoplectic effusion is not very fre-quent in the cerebellum, but it is found to be mo
Manual of pathological anatomy . parts of the encephalon may present apoplectic effusions, butthe parts most frequently affected are the anterior lobes, and espe-cially the vicinity of the corpora striata. As a rule the greystructures, including the convolutions of the brain,* exhibit thegreatest proclivity to the affection, which is in consonance withthe known vascularity of these tissues. The structures mostremoved from the grey matter, as the corpus callosum and thefornix, are least liable to it. Apoplectic effusion is not very fre-quent in the cerebellum, but it is found to be more raj)idly andmvariably fatal when it occurs here than elsewhere. Andralsextensive sphere of observation has only presented him with sixcases of haemorrhage into the cerebellum, and in three of these itwa^ associated with heBmorrhag-e into the cerebrum. It is still * Trans. Path Soc, 1869, vol. xx. pp. 1 and 2, and Fig-. 1. 258 HiEMORllHAGE. more rare, according to Eokitansky, in the pons Varolii andmedulla oblongata.* Fig. Apoplectic effusion upon the left side of the pons Varolii. Causes of Cerebral Hcemorrhage.—In the causation of apoplecticeffasion three elements come into consideration : the condition of Fig. 64.
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