Intermittent obstructive hydrocephalus in the Arnold-Chiari malformation

Abstract
A 26‐year‐old woman with a Chiari‐I malformation and intermittent symptoms of intracranial pressure elevation is described. Clinically, papilledema was accompanied by midperipheral retinal hemorrhages. Repeat computed tomographic scans and lumbar puncture showed normal results. Posterior fossa‐directed magnetic resonance image scanning revealed the Chiari‐I malformation. Intraventricular monitoring was necessary to demonstrate the marked but unsustained elevation of intracranial pressure.