[Role of congophilis angiopathy in the genesis of subarachnoid--parenchymatous hemorrhages in middle-aged and elderly persons].

The author conducted a morphological analysis of 8 cases (from 61--83 years old) with extensive subarachnoidoparenchymatous hemorrhages, accompanied by expressed congofil angiopathy in different clinical processes. In 5 cases congofil angiopathy was the only lesion of cerebral vessels, in 3 cases it was combined with hypertensive angiography and atherosclerosis. In the latter cases the morphological picture was characterized by a great diversity due to greater expressiveness of accompanying hyalinosis and proliferative changes in the walls of the vessels. In both subgroups all the changes were prevalently in the meningocortical vessels. The author points to frequent relapses of the process.