FAMILIAL PORENCEPHALY

This is the first report of oculomotor silent symptoms and unnoticed q uadranopic field defects in mother and child, the latter with congenit al spastic hemiparesis, homonymous hemianopia, and disturbed ocular mo tility, also due to a porencephalic type II cyst. Full neuro-ophthalmo logical examination with magnetic resonance imaging (MRI) of the brain in relatives of children with congenital spastic hemiparesis is requi red to detect porencephaly II carriers and the evaluation of the penet rance of a possibly porencephalic gene (familial porencephaly, MIM 175 78 MacKusick, 1988).