Porencephaly from periventricular intracerebral hemorrhage in a premature infant
J. F. Pasternak, J. F. Mantovani and J. J. Volpe
In two thirds of the premature infants who survived large periventricular
intracerebral hemorrhage, a porencephalic cyst developed at the site of
parenchymal hemorrhage. The porencephaly seems to develop as a result of
local parenchymal destruction by the hemorrhage itself. These cysts can
occur in the absence of posthemorrhagic hydrocephalus or increased
intracranial pressure. Three of four infants who were observed for at least
five months had lateralized motor deficit that corresponded to the cyst.
