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  • 11
    Electronic Resource
    Electronic Resource
    Medulloblastoma in children: CT and MRI findings (1996)
    Springer
    Neuroradiology 38 (1996), S. 352-359 
    Details
    ISSN: 1432-1920
    Keywords: Medulloblastoma ; Childhood brain tumours ; Magnetic resonance imaging ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Our purpose was to determine whether medulloblastoma (MB) shows specific neuroradiological features which may be employed in differential diagnosis from other common posterior cranial fossa tumours in childhood. Preoperative MRI was performed on 20 children with MB, and preoperative CT in 17 of them. All underwent surgery and histopathological diagnosis. There was a constant relationship between high density on CT and low signal on T1-weighted images. Signal behaviour on T2-weighted images and the degree of contrast enhancement were more variable. Most tumours arose in the midline, from the cerebellar vermis, involving the fourth ventricle, but hemisphere and extra-axial neoplasms were also seen. The combination of high density on CT and low signal on T1-weighted images is highly suggestive of MB and may assist preoperative differential diagnosis from other posterior cranial fossa tumours.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00596587
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    Ventriculography with watersoluble contrast in the diagnosis of posterior fossa tumors (107 cases) (1974)
    Springer
    Neuroradiology 8 (1974), S. 25-38 
    Details
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'étude des tumeurs de la fosse postérieure à l'aide d'un produit de contraste hydrosoluble introduit directement dans le 3ème ventricule visualise de fines structures anatomiques plus nettement que d'autres méthodes, ce qui est important pour l'obtention d'un diagnostic topographique précis en cas de processus expansif, condition essentielle pour un traitement correct. Les auteurs décrivent le mode d'exécution et les critères du diagnostic différentiel des diverses localisations.
    Abstract: Zusammenfassung Es wird über die Untersuchungen mit wasserlöslichen Kontrastmitteln bei Tumoren der hinteren Schädelgrube berichtet. Dabei wird das Kontrastmittel direkt in den 3. Ventrikel injiziert. Bei dieser Untersuchungsmethode sind die anatomischen Strukturen besser erkennbar als bei anderen Untersuchungen. Die Detail-Diagnostik ist besonders wertvoll für eine genaue topographische Diagnose der intracraniellen Raumforderungen. Die Untersuchungstechnik und die differentialdiagnostischen Kriterien für die unterschiedlichen Lokalisationen werden beschrieben.
    Notes: Summary The study of posterior fossa tumors with a watersoluble contrast medium introduced directly into the third ventricle demonstrates some anatomical structures more clearly than with other materials. This detail is useful for a precise topographical diagnosis of space-occupying lesions. The mode of execution and the differential diagnostic criteria for the various localizations are described from a study of 107 cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00339800
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    Paper (German National Licenses)
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  • 13
    Electronic Resource
    Electronic Resource
    Prognostic significance of cerebral arterial spasm in the course of meningeal haemorrhage (1972)
    Springer
    Neuroradiology 3 (1972), S. 150-152 
    Details
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La présence d'un spasme artériel cérébral introduit un pronostic défavorable. Le mauvais pronostic peut être amélioré par le choix judicieux du moment de l'intervention chirurgicale, lorsque le spasme a diminué, et en appliquant la corticothérapie intrarachidienne. Le pronostic varie également en fonction de l'âge du malade, de la topographie de l'anévrisme et de la disposition du cercle de Willis.
    Abstract: Zusammenfassung Der Nachweis von cerebralen Gefäßspasmen ist ein ungünstiges prognostisches Zeichen, wie die Autoren an ihrem eigenen Krankengut nachweisen konnten.
    Notes: Summary The presence of a cerebral arterial spasm carries an unfavourable prognostic significance. The poor prognosis can be improved by wisely choosing themoment of operation, to be performed once the spasm has subsided, and by applying intrathecal corticoid therapy. It appears also modified in relation to various factors, such as age of the patient, topography of the aneurysm and pattern of Willis's circle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00341498
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    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    Ependymomas of the posterior cranial fossa: CT and MRI findings (1995)
    Springer
    Neuroradiology 37 (1995), S. 238-243 
    Details
    ISSN: 1432-1920
    Keywords: Ependymoma ; Posterior cranial fossa ; Children ; Magnetic resonance imaging ; Computed tomography ; Brain tumours
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied nine children with posterior cranial fossa ependymomas to identify specific neuroradiological features. Patients were studied preoperatively with CT and MRI; T1-, T2-and proton-density (PD)-weighted images were obtained. All children underwent surgery and a definite histopathological diagnosis was made. All the tumours grew into the fourth ventricle and caused dilatation of its upper part, which resembled a cap. All but one were separated from the vermis by a cleavage plane. In eight cases there was desmoplastic development through the foramina of the fourth ventricle, and five were heterogeneous due to necrosis and cystic change; one had a haemorrhagic area. In most cases the solid portion was isointense with grey matter on T1-weighted images, hyperintense on PD weighting, and isointense on T2-weighted images. On CT the tumour was isodense in six cases and calcification was detected in four. The presence of both desmoplastic development and a tumour/vermis cleavage plane in a posterior cranial fossa tumour isodense on CT is highly suggestive of ependymoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01578265
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    Paper (German National Licenses)
    Fulltext
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