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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 107 (1990), S. 56-60 
    ISSN: 0942-0940
    Keywords: Ectopic ; intraosseous ; meningioma ; skull base
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Four cases of primary intraosseous meningiomas were seen among 373 cases of intracranial meningiomas operated upon in the Neurosurgical Clinic of the Krankenhaus Nordstadt, Hannover, FRG between January 1978 and December 1988. These 4 cases represent 1% of all intracranial meningiomas. Patients' age ranged between 21 and 66 years; 2 were females and 2 males. Presenting symptoms were localized orbital pain in 1 case, protrusion of the eye in 1 patient, pain in the orbit and forehead and protrusion of the eye in 1 patient, and peripheral facial palsy in 1 case. Symptoms lasted between 3 and 10 years. Two tumours were in the bony orbit, 1 in the bony orbit and in the frontal bone and 1 in the temporal bone. All tumours were surgically completely removed. All patients are clinically and computer tomography free of tumour 1 to 8 years after the operation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 99 (1989), S. 122-126 
    ISSN: 0942-0940
    Keywords: Trauma ; vertebral artery ; arteriovenous fistula ; surgery ; embolization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two patients with vertebral arteriovenous fistulae were treated at the Neurosurgical Clinic of the City Hospital of Hannover between 1981 and 1988. Both patients were males, 19 and 29 year old. The fistulae were secondary to cervical gunshot wounds. Both patients complained of a loud cephalic noise; 1 patient had a non pulsating neck mass. A systolic cervical bruit was heard in both cases. One patient had an incomplete mid-cervical Brown-Sequard syndrome. The fistulae involved the second portion of the vertebral artery; 1 fistula was fed, in addition to the vertebral artery, by the deep cervical artery. Venous drainage was through intraspinal plexus, vertebral vein, deep cervical veins and internal jugular vein. One patient was treated with a direct surgical trapping of the vertebral artery proximal and distal to the fistula; the other patient, in addition to direct surgical vertebral artery trapping, received an endovascular balloon occlusion of the deep cervical artery. After treatment the fistulae disappeared, both clinically and angiographically.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0942-0940
    Keywords: Surgical technique ; facial nerve ; pterional-transzygomatic craniotomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The temporal branch of the facial nerve may be saved in a pterional-transzygomatic craniotomy if the dissection is carried beneath the superficial temporal fascia. The anatomical and technical aspects of this exposure are described in this report.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0942-0940
    Keywords: Glomus jugulare ; foramen jugulare ; neurinoma ; meningioma ; clivus ; surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Nine patients with tumours located at the petro-clival region were operated upon from June 1985 to June 1988 using a combined supra- and infratentorial approach anterior to the sigmoid sinus. Two patients had petroclival meningiomas. 4 foramen jugulare neurinomas and 3 glomus jugulare tumours. There was no mortality. Total tumour removal was accomplished in all the patients. All patients remained independent postoperatively. The surgical approach used involves a temporal craniotomy, a suboccipital craniectomy, an extensive mastoidectomy and petrous pyramid drilling without entering the bony labyrinth, the middle ear or the Fallopian canal. The dura is incised supratentorially over the posterior temporal lobe and infratentorially in front of the sigmoid sinus. The temporal lobe is retracted superiorly and the cerebellum and the sigmoid sinus medially. This approach makes use of a very short distance to the petroclival area, offers a multiangled exposure, preserves the dural sinuses, does not iatrogenically impair hearing and minimizes temporal lobe retraction. This exposure is particularly useful in large tumours.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 138 (1996), S. 890-892 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] X-ray analyses have defined the three-dimensional structures of crystals of mouse and human renins complexed with peptide inhibitors at resolutions of 1.9 and 2.8 Å, respectively. The exquisite specificity of renin arises partly from ordered loop regions at the periphery of the binding ...
    Type of Medium: Electronic Resource
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