Cerebral Intraparenchymal Hemorrhage: A Review, JAMA 2019
Importance Although spontaneous intraparenchymal hemorrhage (IPH) accounts for less than 20% of cases of stroke, it continues to be associated with the highest mortality of all forms of stroke and substantial morbidity rates.
Arteriovenous Malformations of the Brain
Arteriovenous malformations of the brain are focal abnormal conglomerations of
dilated arteries and veins within brain parenchyma, in which a loss of normal vas-
cular organization at the subarteriolar level and a lack of a capillary bed result in
abnormal arteriovenous shunting (Fig. 1)