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A. Ver Brugghen

approached through the classical temporal route with section of the sensory root of the trigeminal nerve, and, if possible, removal of the tumour. REFERENCES 1. Adson , A. W. Cited by Love and Woltman. 15 Adson , A. W. Cited by Love and Woltman. 15 2. Cooper , M. J. Tumors of the Gasserian ganglion. Amer. J. med. Sci. , 1933 , n.s 185 : 315 – 324 . Cooper , M. J. Tumors of the Gasserian ganglion. Amer. J. med. Sci. , 1933, n.s. 185: 315–324. 3. Cushing , H. , and

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Harvey Jackson

. Fig. 6. Meningioma of the optic nerve from a 26-year-old female patient. The central end of the nerve is not invaded. (×1.5) Comparisons between Benign Optic-Nerve Tumours Glioma Meningioma 1. Tumor of early age. Average age: 10 years (udson 3 ) Occurs generally in adult life Average age: 35 years 2. Visual disturbance usually precedes proptosis Visual disturbance frequently follows proptosis 3. Limitation of ocular movement is more common and appears earlier Limitation of ocular movement is less common

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Daniel M. Sciubba, Rory J. Petteys, Giannina L. Garces-Ambrossi, Joseph C. Noggle, Matthew J. McGirt, Jean-Paul Wolinsky, Timothy F. Witham and Ziya L. Gokaslan

, Takahashi Y , Kitagata H , Kadoya M , : Presacral ganglioneuroma arising in an elderly man with persistent constipation . Abdom Imaging 26 : 215 – 217 , 2001 77 Ortolan EG , Sola CA , Gruenberg MF , Carballo Vazquez F : Giant sacral schwannoma. A case report . Spine 21 : 522 – 526 , 1996 78 Osborn A : Miscellaneous tumors, cysts, and metastases . Diagnostic Neuroradiology St. Louis , Mosby , 1994 . 626 – 670 79 Ozdemir MH , Gurkan I , Yildiz Y , Yilmaz C , Saglik Y : Surgical treatment of malignant tumours of the

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Akwasi Ofori Boah and Noel I. Perin

technique aid in the avoidance of injury to the lumbar plexus. References 1 Akhavan A , Binesh F , Ghannadi F , Navabii H : Excellent response of malignant peripheral nerve sheath tumour of retroperitoneum to radiation therapy . BMJ Case Rep 2012 . 17 , 2012 2 Arrabal-Polo MA , Merino-Salas S , Arrabal-Martín M , Nogales F , Alaminos M , Campos A , : Retroperitoneal schwannoma. A complex surgical treatment of a tumor with uncertain behavior . Acta Chir Belg 113 : 351 – 354 , 2013 3 Asakage N : Laparoscopic resection of

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Daniel M. Sciubba, E. Clif Burdette, Jennifer J. Cheng, William A. Pennant, Joseph C. Noggle, Rory J. Petteys, Christopher Alix, Chris J. Diederich, Gabor Fichtinger, Ziya L. Gokaslan and Kieran P. Murphy

may not be amenable to surgical treatment. 2 , 8 , 10 Unfortunately, for patients with tumoral spine disease, there is currently no adequate alternative to the immediate pain relief that may occur with minimally invasive percutaneous vertebroplasty. 9 , 12 , 20 , 42 , 44 , 47 , 64 However, such vertebroplasty, at best, only affects pain symptoms and has not been designed to eradicate the cancer. 9 , 12 , 20 , 44 , 47 Radiofrequency ablation has proven to be an effective method for the treatment of malignant and benign tumors. 3 , 24 , 50 , 58 , 67 It works

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Amin B. Kassam, Johnathan A. Engh, Arlan H. Mintz and Daniel M. Prevedello

I ntraparenchymal brain tumors, both primary and metastatic, have been resected using microscopic visualization for decades. The addition of intraoperative image guidance has increased the precision of these procedures, allowing surgeons to effectively target smaller and deeper lesions via minimally invasive corridors. Even with image guidance, however, any approach to an intraparenchymal tumor that does not present directly to the pial surface requires some degree of corticectomy and dissection of underlying white-matter fascicles. In fact, even

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John I. Moseley and Robert W. Rand

S ince its first use in 1851, the local cooling of tissue has had a variety of applications, particularly in the nervous system. 1 The advantages of solid freezing of tumors to facilitate dissection and removal have been emphasized, 1 and the benefits of freezing residual tumor have been stressed. 2, 3 This report highlights the adhesive property of the cryoprobe applied to the tumor surface that allows local tumor retraction during the microsurgical dissection of various spinal cord and intracranial tumors. A 4- to 6-mm ice bond is formed within a period

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Harel Deutsch, Praveen V. Mummaneni, Regis W. Haid, Gerald E. Rodts and Stephen L. Ondra

Primary tumors of the sacrum are rare. In adults, the most common sacral tumors are metastases. The most common primary sacral tumor is a chordoma. Chordomas along as well as tumors such as chondrosarcomas, osteosarcomas, myxopapillary ependymomas, myelomas, and Ewing sarcomas are considered malignant. In this article the authors focus on benign sacral tumors.

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Roberto Tarantino, Vincenzo Esposito, Paolo Missori and Giampaolo Cantore

P seudomalignant osseous tumor of the soft tissue is a self-limiting benign ossifying process that is generally solitary and well circumscribed. It is usually localized in the limbs or chest. The authors describe a very rare case of pseudomalignant osseous tumor of the soft tissue localized in the occipitocervical region. Case Report Presentation and Examination This 12-year-old girl was admitted to our institution in January 1997 for a left-sided occipitocervical mass that had appeared approximately 1 year earlier. Nothing remarkable was noted on

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Fadi Hanbali, Peyman Tabrizi, Frederick F. Lang and Franco DeMonte

A lthough tumors of the skull base are rare in children and adolescents, they represent a considerable management problem for oncologists. Of the tumors that do occur in this age group, many are chemosensitive and these cases are consequently not referred to neurosurgeons. Conversely, resection is an important component of the management of many pediatric neoplasms, especially those that are benign or, although not frankly malignant, are locally invasive. 8 Despite the critical role of surgery in these tumors, the majority of investigators have focused on the