Morphogenesis of plasmatic arterionecrosis as the cause of hypertensive intracerebral hemorrhage.

摘要: The morphogenesis of the vascular lesions, which were considered to be immediate cause hypertensive intracerebral hemorrhage, was morphologically studied in autopsy cases. direct hemorrhage rupture microaneuysms resulted from plasmatic arterionecrosis. arterionecrosis predominantly present arteries approximately 150 µ diameter, especially external branches arteriae corporis striati mediae putamen, and characterized by medial smooth muscle cell loss, blood plasma insudation intima, histolysis internal elastic lamina intimal collagenous fibers, fibrin deposition (fibrinoid degeneration) luminal dilatation. development as well fibrinoid degeneration caused wall with preceding necrosis loss cells subsequent fibrous thickening dilated lumina. Intracerebral microaneurysms also formed a narrow sense, due had occurred, but substance) intima not yet arisen.