[Unusual course of a planned lumbar microdiscectomy].

We report the case of a 30-year-old female patient who underwent unilateral transverse sinus stenosis stenting due to a newly diagnosed idiopathic intracranial hypertension (Pseudotumor cerebri) with symptoms of papilledema, decreased visual acuity and headache. Resolution of the symptoms and improvement of magnetic resonance and ophthalmiologic findings could be documented.

[Beware of unconspicious cerebro spinal fluid].

Nowadays with a lot of diagnostic facilities it is also difficult to find the right diagnose of herpes encephalitis. The aim of this case report was to give an overview about strategies of diagnostic and therapy of the herpes encephalitis.

Optic neuropathy and central retinal artery occlusion in non-Hodgkin lymphoma.

We report a patient with systemic large cell non-Hodgkin lymphoma in remission who presented with the rare combination of optic neuropathy and central retinal artery occlusion. Another unusual feature of this case is the lack of enhancement in the affected region on magnetic resonance imaging only hours after the first dose of steroids. Despite prompt treatment with steroids and radiotherapy, lymphomatous infiltration of the meninges developed 2 months later and was ultimately fatal.

Accuracy of MRI-guided stereotactic thalamic functional neurosurgery.

Our goal was to evaluate the accuracy of stereotactic technique using MRI in thalamic functional neurosurgery. A phantom study was designed to estimate errors due to MRI distortion. Stereotactic mechanical accuracy was assessed with the Suetens-Gybels-Vandermeulen (SGV) angiographic localiser.