http://biblioteca.universia.net/verColeccion.do?start=100&id=4348 Mostrando recursos 101 - 120 de 551 es http://biblioteca.universia.net/img/logotipo.jpg http://biblioteca.universia.net/ http://biblioteca.universia.net/ficha.do?id=16434249 Gil, Ziv; Cohen, Jacob T.; Spektor, Sergei; Leider-Trejo, Leonor; Fliss, Dan M.; Beasley, Nigel; Gullane, Patrick; Donald, Paul; Draf, Wolfgang; Raveh, Joram http://biblioteca.universia.net/ficha.do?id=16434250 Glomus tumors of the head and neck are benign vascular lesions that often provide dilemmas in management. The presence of somatostatin receptors on the tumor cell surface has facilitated an additional imaging technique in the form of radiolabeled octreotide scanning. The use of the somatostatin analogue, octreotide, also provides a therapeutic option for inoperable or recurrent tumors. We present two patients, one with a surgically inaccessible tumor that recurred after primary radiotherapy a... Rafferty, M. A.; Walsh, R. M.; Walsh, M. A. http://biblioteca.universia.net/ficha.do?id=16434251 Blepharocele is a rare complication of skull base injury involving the orbital roof. We present a 23-year-old male who developed blepharocele due to an orbital rim fracture and basal dural tear. His vision remained intact. The lesion resolved completely after surgical repair of the basal dura. Bhatoe, Harjinder Singh http://biblioteca.universia.net/ficha.do?id=16434252 Jackson, Ian T. http://biblioteca.universia.net/ficha.do?id=16434253 Nanda, Anil; Jawahar, Ajay http://biblioteca.universia.net/ficha.do?id=16434254 Occipital condyle fractures are a rare finding in trauma victims. Bilateral fractures are even more unusual and have typically been reported in autopsy studies. We treated two patients with bilateral occipital condyle fractures who had only minor symptoms. Anderson and Montesano's classification,1 possible cranial nerve palsies, diagnosis, and treatment of this rare fracture are discussed. Schrödel, Markus H.; Kestlmeier, Ralph; Trappe, Anna E. http://biblioteca.universia.net/ficha.do?id=16434255 Two patients sought treatment for symptoms of bulbar motor dysfunction and the marked emotional lability that characterizes pseudobulbar palsy (PBP). Magnetic resonance (MR) imaging showed large petroclival masses with severe compression and displacement of the brainstem. A suboccipital craniectomy with a transpetrosal, transtentorial approach to the tumor was performed in both patients. One patient required a second-stage surgery to resect an extension of the tumor into the cavernous sinus. ... McCormick, William E.; Lee, Joung H. http://biblioteca.universia.net/ficha.do?id=16434256 Bioresorbable implants (meshs and plates) are increasingly used in reconstructive craniofacial and skull base surgery. Usually these implants must be contoured to fit the complex craniofacial anatomy ex vivo; occasionally final contouring is performed in vivo and must be done without damaging surrounding structures (e.g., dura, brain). We report a precision method for in vivo contouring of bioresorbable implants using the Shaw hemostatic thermal scalpel. DeLacure, Mark D.; Kuriakose, M. Abraham http://biblioteca.universia.net/ficha.do?id=16434257 http://biblioteca.universia.net/ficha.do?id=16434258 Gustafson, Mark; Pensak, Myles L. http://biblioteca.universia.net/ficha.do?id=16434259 Sasaki, Clarence T. http://biblioteca.universia.net/ficha.do?id=16434260 Sekhar, Laligam N.; Rak, Ramin http://biblioteca.universia.net/ficha.do?id=16434261 Meningoceles, encephaloceles, and meningo-encephaloceles may develop through defects associated with congenital anomalies or through defects produced by tumor, trauma, or surgery. Their initial management, surgical indications, and repair techniques are not universally accepted. We undertook this study to compare the contributions of different surgical techniques and materials to the success of endoscopic repairs of acquired meningo-encephaloceles. We also examined whether characteristics of ... Zweig, Julie L.; Carrau, Ricardo L.; Celin, Scott E.; Snyderman, Carl H.; Kassam, Amin; Hegazy, Hassan http://biblioteca.universia.net/ficha.do?id=16434262 Papadopoulos, Stephen http://biblioteca.universia.net/ficha.do?id=16434263 The course of the oculomotor nerve on the clivus was abnormal in a patient with petroclival meningioma. He complained of gait disturbance. A gadolinium-enhanced magnetic resonance image demonstrated a 4.4-cm enhancing mass in the petroclival region. The tumor was removed via an anterior transpetrosal-transtentorial approach. Normally, the oculomotor nerve originates from the brainstem and enters the oculomotor trigone. In this patient, the oculomotor nerve entered the dura mater at the upper ... Katayama, Masateru; Kawase, Takeshi; Sato, Shuzo; Kojima, Atsuhiro; Yoshida, Kazunari http://biblioteca.universia.net/ficha.do?id=16434264 Casey, Kenneth F.; Jannetta, Peter J. http://biblioteca.universia.net/ficha.do?id=16434265 The registration accuracy of skin- and bone-implanted fiducials using a frameless stereotactic system were analyzed prospectively. Ammirati, Mario; Gross, Jeffrey D.; Ammirati, Giuseppe; Dugan, Sharon http://biblioteca.universia.net/ficha.do?id=16434266 Orbitofrontal fibrous dysplasia often involves the bony orbit and the optic canal. Although fibrous dysplasia reportedly produces compression of the optic nerve leading to visual distrubances, optic nerve decompression in patients without clinical signs of optic neuropathy is still controversial. We describe two patients with orbitofrontal fibrous dysplasia without signs of visual disturbance and one patient with McCune-Albright syndrome and progressive visual impairment. Optic nerve decompre... Abe, Takumi; Sato, Kaneshige; Otsuka, Takaharu; Kawamura, Noriyoshi; Shimazu, Motohiko; Izumiyama, Hitoshi; Matsumoto, Kiyoshi http://biblioteca.universia.net/ficha.do?id=16434267 Chordomas are rare tumors of the central nervous system and primarily occur in the extradural space. We report two patients with intracranial chordomas located in the region of the clivus that invaded the prepontine cisterns. The patients, 45 and 62 years old, had histories of cranial neuropathies and headache, respectively. Petrosal approaches were performed in both with radical resection of the tumors. Anatomopathological studies confirmed the diagnosis of chordoma. The symptoms of both pat... Gonzalez-Martinez, Jorge A.; Guthikonda, Murali; Vellutini, Eduardo; Zamorano, Lucia; Li, Qinghang; Kupski, William; Diaz, Fernando G. http://biblioteca.universia.net/ficha.do?id=16434268 Thompson, B. Gregory