Authors: Firuze Delen Canan Togay Işıkay Hasan Çağlar Uğur
Publish Date: 2012/04/25
Volume: 112, Issue: 4, Pages: 389-392
Abstract
The clinical presentation consisting of headache and bilateral papilledema necessitates brain magnetic resonance imaging MRI and magnetic resonance venography MRV to exclude possible causes of intracranial hypertension particularly cerebral venous thrombosis spaceoccupying lesions and hydrocephalus The diagnosis of primary pseudotumor cerebri PC depends on a normal brain imaging and cerebrospinal fluid CSF biochemistryCaudal displacement of the cerebellar tonsils 5 mm or more through the foramen magnum into the upper cervical spinal canal is defined as Chiari malformation CM type I Inferior tonsillar displacement ITD less than 5 mm is called cerebellar ectopia 1 CM may cause several symptoms related to caudal brainstem or upper cervical spinal cord compression and blockage of CSF outflow
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