Approaches to the Orbit: A 360-Degree View
Fig. 31.1 Axial T2-weighted MR image showing a large cavernous hemangioma in the lateral region of the left orbit causing optic nerve compression The secondary tumors originate elsewhere and invade…
Bypass and Vascular Reconstruction for Posterior Circulation Aneurysms
Fig. 41.1 Management protocol for posterior circulation aneurysms (Note that age is given in years) 41.3 Collateral Circulation and Parent Vessel Sacrifice The effect of occlusion of the posterior circulation…
Bypass and Vascular Reconstruction for Anterior Circulation Aneurysms
Large/or giant saccular aneurysms ≥ 14 mm Calcified or atherosclerotic sac, heavily thrombosed Complex or absent neck Neck diameter >4 mm Neck encompasses > 90° of vessel circumference Dome/neck ratio < 1.5 Atherosclerosis, calcification Fusiform aneurysms…
Epilepsy Surgery
Fig. 39.1 Video electroencephalogram (EEG): ictal EEG showing rhythmical theta activity in electrodes in the right mesial temporal lobe Over recent years, improvements in imaging techniques such as magnetic resonance…
Endoscopy and Thermodiskoplasty: A Minimally Invasive Surgical Treatment for Lumbar Pain
Fig. 10.1 Effect of collagen shrinking by heat The evidence of the effectiveness and safety of this method in low back pain has been described in various reports. Saal and…
Total Lumbar Facet Replacement: Indication, Technique, and 3- and 4-Year Results
Fig. 44.1 (a, b) Anatomical facet replacement (ACADIA™) 44.2 Indication and Surgical Technique Indications for facet replacement are painful degenerated vertebral joints. Spinal stenosis, namely, lateral recess and foraminal stenosis…
Retrosigmoid Approach to the Posterior and Middle Fossa
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)…
Jugular Foramen Tumors: Diagnosis and Management
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…
The Surgical Management of Trigeminal Schwannomas
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…
Petroclival Meningiomas Diagnosis, Treatment, and Results
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…
