CT MRI: T1 MRI: T2 MRI: FLAIR MRI: QWI MR spectroscopy Hypodense calcifications – rare Hypo-/isointense Hyperintense Moderate hyperintense High signal Elevated lactate peak No adjacent bony reaction Fig. 30.1…
Fig. 33.1 Classification of foramen magnum tumors according to the position in the anteroposterior plane as anterior (a), lateral (b), and posterior (c) The last aspect includes the relative position…
Case Age/sex Symptoms Intradural/lateral extension Prev. OP/RT Extent of resection Complication Time to re-OP (mo)/extent of resection Adjuvant RT F/u (mo) 1 56/F None +/+ −/− GTR Transient CN VI…
Fig. 18.1 Sagittal T1-weighted MRI (a) showing a large chordoma resulting in severe brain stem compression. The tumor is predominantly hypointense showing some hyperintensity foci that might depict focal hemorrhage….
Fig. 17.1 (a, b) Classification of sphenoid wing meningioma (SWM). (a) I – Medial SWM without cavernous sinus (CS) involvement; II – medial SWM with CS involvement; III – middle…
Fig. 27.1 (a) Example of a group 1 tumor. A 58-year-old female with a left-sided cerebellopontine angle (CPA) meningioma located anterior to the inner auditory canal (IAC). (b) Illustration of…
Fig. 6.1 “Stand up and walk” (SUAW) international surgical team in front of the Anatomical Institute of the University of Montpelier, 13 December 1998 (from left to right): Giorgio Brunelli…
Fig. 24.1 (a) Right vestibular schwannoma exposed via the lateral suboccipital approach. (b) The dura of the petrous bone is resected. (c) The posterior wall of the internal auditory canal…
Fig. 26.1 (a, b) T2-weighted axial MRI scans revealing a small and a large arachnoid cyst located at the cerebellopontine angle Fig. 26.2 T1- and T2-weighted gadolinium-enhanced images (a, b)…
Fig. 1.1 (a) Gadolinium-enhanced, T1-weighted axial MRI of a vestibular schwannoma on the left side. The primary data for image guidance in this particular case were obtained from both a…
