Fig. 20.1 Preoperative thin-slice temporal bone CT. (a) Note the close relationship of the cochlea (black arrow), vestibule (white arrowhead), and internal auditory canal (asterisk). The emissary vein (black arrowhead)…
Histology No. of cases Total Subtotal Paragangliomas 74 58a 16b Schwannomas 19 19 00 Meningiomas 13 07 06 Aneur. bone cyst 02 02 00 Chondrosarcoma 07 01 06 Chordoma 07…
Fig. 21.1 Large extracranial trigeminal schwannoma with small middle fossa extension (type A) Fig. 21.2 Drawing of trigeminal schwannoma with main portion in the middle fossa and small extracranial extension…
Fig. 19.1 (a, b) Cerebellopontine angle meningioma. (c) Low clivus meningioma. (d–f) Petroclival meningioma 19.3 History Classically, posterior fossa meningiomas were classified in 1953 by Castellano and Ruggiero [5] using…
Fig. 22.1 Most common origin sites of facial nerve schwannomas. ICA internal carotid artery, TN trigeminal nerve, TU tumor 22.2 Surgical Anatomy The surgical anatomy of the petrous apex, temporal…
Patient Age No. of previous surgeries Size 1st op (cm) Tu. types Grade resection last surgery (%) Radiation therapy after previous surgery(ies) Size before definitive surgery (cm) Time between last…
Fig. 32.1 The “combined endoscopic transnasal/transseptal binostril approach.” Observe the nasoseptal flap on the left side (F) and the intact right septal mucosa (SM), sphenoid rostrum (SR), inferior turbinate (IT),…
Demographic data n = 51, Male: 29, Female: 22, Median age: 38 years (16–78) EOR Symptoms Histology Location Preoperative KPS Postoperative KPS Total (25) = 49 % Irritative (38) = 74.5 % High-grade gliomas (21) = 41.1 %…
Fig. 34.1 Photograph of a paper record made while monitoring intracranial pressure epidurally in a patient with normal-pressure hydrocephalus (NPH). Sequences of symmetrical B-waves, initially described by Lundberg in the…
1. Typical history and examination according to International Headache Society criteria 2. Pain has at least four of the following characteristics: 2a. Distribution along one or more divisions of the…
