Marco J. T. Verstegen

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OBJECT Patients harboring colloid cysts of the third ventricle can present with acute neurological deterioration, or the first indication of the lesion may appear when the patient suddenly dies. The risk of such an occurrence in a patient already identified as harboring a colloid cyst is unknown. The goal of this study was to estimate the risk of acute(More)
We describe a 29-year-old woman who presented with progressive neck pain, sensory deficit and weakness in both arms. Magnetic resonance imaging (MRI) of the cervical spine revealed an extramedullary tumor with severe spinal cord compression. During surgery an intradural extramedullary tumor was found. Further imaging showed a second lumbar spinal tumor.(More)
BACKGROUND In active acromegaly, pathologically elevated GH and IGF-1 levels are associated with increased bone turnover and a high bone mass, the latter being sustained after normalization of GH values. In a cross-sectional study design, we have previously reported a high prevalence of vertebral fractures (VFs) of about 60% in patients with controlled(More)
CONTEXT AND OBJECTIVE In a cohort of 17 patients treated for nonfunctioning pituitary macroadenoma (NFMA), we observed alterations in polysomnographic sleep characteristics and actigraphic sleep-wake rhythmicity, and subjective fatigue, daytime somnolence, and low sleep quality. We aimed to confirm the actigraphic data in a larger scale cohort of NFMA(More)
Cerebellar haemorrhage is an unusual complication of supratentorial neurosurgery. Several causative pre-operative factors and medical risk factors may predispose patients to cerebellar haemorrhage, however its etiology remains still unclear. Only two case reports have previously described the occurrence of cerebellar haemorrhage after subdural haematoma(More)
Chordoid glioma is a relatively new entity since the histopathology of a series of low-grade tumors arising in the area of the hypothalamus and the anterior third ventricle was first described in 1998 [1]. The characteristic histopathology shows features of a chordoma as well as positive staining for glial fibrillary acidic protein (GFAP) favoring a glial(More)
The authors report a case of multiple meningiomas in a 37-year-old woman with Rubinstein-Taybi syndrome. The patient harbored a bifrontal ossifying meningioma and multiple intracranial meningiomas. She underwent surgery for the frontal ossifying meningioma and a right frontoparietal meningioma.
We present a 49-year-old man with a subarachnoid haemorrhage from a dissecting vertebral artery (VA) pseudoaneurysm treated with a proximal balloon occlusion. The clinical course was complicated by the sudden appearance of a lateral medullary syndrome (Wallenberg), which completely resolved after anticoagulant therapy. During this course, CT-angiography(More)