Congenital aneurysmal hemorrhage and astrocytoma in an infant.

The authors present the unusual case of an infant who presented at 4 weeks of age with a spontaneous intracerebral hemorrhage due to rupture of a congenital left middle cerebral artery aneurysm. He recovered only to present at 4 months of age with a right frontoparietal desmoplastic cerebral astrocytoma of infancy. The association of brain tumor and aneurysm is discussed, as are the cytogenetic findings associated with this rare form of benign astrocytoma.