PubMed Central (PMC3 - NLM DTD)
(2,081,148 recursos)
Archive of life sciences journal literature at the U.S. National Institutes of Health (NIH), developed and managed by NIH's National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM).
Mostrando recursos 101 - 120 de 551
101.
Recurrent Anterior Skull Base Plasmocytoma - Gil, Ziv; Cohen, Jacob T.; Spektor, Sergei; Leider-Trejo, Leonor; Fliss, Dan M.; Beasley, Nigel; Gullane, Patrick; Donald, Paul; Draf, Wolfgang; Raveh, Joram
102.
Somatostatin Therapy for Glomus Tumors: A Report of Two Cases - Rafferty, M. A.; Walsh, R. M.; Walsh, M. A.
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 and one who underwent incomplete resection because of the tumor's proximity to the internal carotid artery. Neither tumor has shown further growth 5 and 3 years after treatment...
103.
Blepharocele After Head Injury - Bhatoe, Harjinder Singh
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.
106.
Bilateral Occipital Condyle Fracture: Report of Two Cases - Schrödel, Markus H.; Kestlmeier, Ralph; Trappe, Anna E.
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.
107.
Pseudobulbar Palsy Caused by a Large Petroclival Meningioma: Report of Two Cases - McCormick, William E.; Lee, Joung H.
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. In both patients pathological evaluation confirmed the diagnosis of syncytial meningioma. After surgery, PBP resolved in both patients. Large posterior fossa tumors should be included in the differential diagnosis of patients...
108.
A Precision Method for Contouring Bioresorbable Implants in Craniomaxillofacial Surgery - DeLacure, Mark D.; Kuriakose, M. Abraham
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.
113.
Endoscopic Repair of Acquired Encephaloceles, Meningoceles, and Meningo-Encephaloceles: Predictors of Success - Zweig, Julie L.; Carrau, Ricardo L.; Celin, Scott E.; Snyderman, Carl H.; Kassam, Amin; Hegazy, Hassan
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 the patient, the meningo-encephalocele, or the adjunctive treatment influenced the outcome of the repair.
115.
Abnormal Course of the Oculomotor Nerve on the Clivus Combined with a Petroclival Meningioma: Case Report - Katayama, Masateru; Kawase, Takeshi; Sato, Shuzo; Kojima, Atsuhiro; Yoshida, Kazunari
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 clivus, behind the posterior clinoid process, and coursed parallel to the basilar artery. This entrance is lower than the normal entry point of the oculomotor nerve. The abnormal entrance...
116.
Commentary - Casey, Kenneth F.; Jannetta, Peter J.
118.
Optic Nerve Decompression for Orbitofrontal Fibrous Dysplasia - Abe, Takumi; Sato, Kaneshige; Otsuka, Takaharu; Kawamura, Noriyoshi; Shimazu, Motohiko; Izumiyama, Hitoshi; Matsumoto, Kiyoshi
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 decompression was performed prophylactically for two patients and therapeutically for one patient through the transcranial extradural route. Dystopias and craniofacial deformities induced by fibrous dysplasia also were corrected. The micropressure suction-irrigation system was especially effective...
119.
Intradural Invasion of Chordoma: Two Case Reports - Gonzalez-Martinez, Jorge A.; Guthikonda, Murali; Vellutini, Eduardo; Zamorano, Lucia; Li, Qinghang; Kupski, William; Diaz, Fernando G.
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 patients resolved, and they have had no recurrence after 18 months of follow-up. Intradural chordomas or extradural chordomas that invade the intradural space are difficult to differentiate...
101.
