Perinatal unilateral hydrocephalus

Abstract
Unilateral hydrocephalus is rare, and is usually associated with a neoplasm or inflammatory response at the foramen of Monro. It is even more uncommon with congenital atresia of one foramen of Monro. We report the fifth such case documented in the perinatal period, and the second case of unilateral hydrocephalus diagnosed by prenatal ultrasound.
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