Urs M Feigen

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In neurofibromatosis type 1 (NF1) spinal tumours cause neurological symptoms in about 2 % of patients. Among over 1400 patients with NF1 we saw symptomatic spinal tumours in 23 (1.6 %). MRI of the entire spinal canal was obtained in 54 patients aged 5–56 years with NF1. The number, site, morphology and signal characteristics of the spinal tumours were(More)
OBJECT The factors that determine the growth rates of vestibular schwannomas (VSs) in patients with neurofibromatosis Type 2 (NF2) are unknown. The authors undertook this study to determine if clinical factors or type of constitutional NF2 mutation were associated with VS growth rates in cases of NF2. METHODS The authors reviewed serial(More)
PURPOSE The purpose of this study was to find out whether pneumothorax detection and exclusion is superior in expiratory digital chest radiography. MATERIALS AND METHODS 131 patients with pneumothorax with paired inspiratory and expiratory chest radiographs were analyzed regarding localization and size of pneumothorax. Sensitivity, specificity, negative(More)
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