Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Morphology of acallosal brains as assessed by MRI in six patients leading a normal daily life (1998)
    Springer
    Journal of neurology 245 (1998), S. 106-110 
    Details
    ISSN: 1432-1459
    Keywords: Key words Agenesis of the corpus ; callosum ; Asymptomatic ; Magnetic ; resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The pattern of anatomical features of the brain revealed by magnetic resonance imaging (MRI) is described in six patients incidentally identified as having acallosal brains. The complex of morphological features associated with complete agenesis of the corpus callosum included lateral displacement of slit-like anterior horns of the lateral ventricles (bullhorn-like shape), dilatation of the posterior horns of the lateral ventricles, absence of the septum pellucidum, lateral displacement of the cingulate gyri, complete separation of fornices and the presence of the anterior commissure and longitudinal callosal bundles (Probst’s bundles). No compensatory enlargement of the anterior commissure was seen in the patients. The planimetrically measured cross-sectional areas of the anterior commissures were between 2.0 and 4.2 mm2 (mean 3.1) (in ten normal subjects they were 4.5, SD 0.4; range 3.8–5.2 mm2) and were reduced in four and normal in two patients. Inconstant morphological features were an absence of the posterior commissure and a radial pattern of the sulci and gyri on the medial aspect of the hemispheres. Conventional clinical testing revealed no abnormalities except a slight impairment of walking heel-to-toe in two patients. None of the patients had subjective restrictions of activities of daily life, which shows the efficacy of unknown compensatory processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004150050187
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Transiente kortikale Blindheit bei EPH-Gestose infolge zerebraler Vasospasmen (1999)
    Springer
    Der Nervenarzt 70 (1999), S. 931-934 
    Details
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Präeklampsie ; Hirnödem ; Zerebraler Vasospasmus ; Farbkodierte Duplex-Sonographie ; Key words Preeclampsia ; Brain edema ; Cerebral vasospasm ; Color-coded duplex ultrasonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The pathogenesis of cortical blindness as a rare complication in severe preeclampsia is still unclear. The case of a women with postpartum blindness is reported in which CT and MRI initially showed cortical and subcortical edema in the parieto-occipital lobes. At this time cerebral angiography and transcranial color-coded sonography (TCCS) revealed widespread cerebral vasospasm. Mean blood flow velocities in the middle and posterior cerebral artery and carotid syphon initially reached 380 cm/s and normalized within 2 weeks. While the patient's vision improved rapidly, follow-up MRI disclosed ischemic lesions and petechial hemorrhage in the occipital cortex. This case provides rare documentation that transient blindness in patients with preeclampsia may result from parieto-occipital ischemia due to cerebral vasospasm. In such patients TCCS may be useful to detect vasospasm associated with preeclampsia/eclampsia.
    Notes: Zusammenfassung Eine seltene Komplikation der Präeklampsie ist eine transiente kortikale Blindheit, deren Pathogenese noch unklar ist. Wir berichten über eine Patientin, die 3 Tage nach Entbindung erblindete. Die initiale CCT und MRT zeigte ein bilaterales parietookzipitaleÖdem. In der zerebralen Angiographie und transkraniellen farbkodierten Duplexsonographie wurde ein zerebraler Vasospasmus nachgewiesen. Die mittleren Strömungsgeschwindigkeiten in der A. cerebri media und posterior sowie im Karotissyphon beidseits waren initial auf Werte bis zu 380 cm/s erhöht und normalisierten sich innerhalb von 2 Wochen. Während sich die Sehstörung der Patientin rasch besserte, war in der MRT ein parietookziptaler Infarkt mit petechialen kortikalen Einblutungen nachzuweisen. Dieser Fallbericht zeigt, daß eine transiente Blindheit bei Patientinnen mit Präeklampsie durch eine parietookzipitale Ischämie bei zerebralem Vasospasmus verursacht werden kann. In solchen Fällen kann die transkranielle Duplexsonographie den Nachweis eines Vasospasmus ermöglichen und somit zur Klärung der Pathogenese von Sehstörungen bei Präeklampsie beitragen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001150050600
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Hämodynamisch bedingte transitorische ischämische Attacken Eine Differentialdiagnose fokaler motorischer Anfälle? (1998)
    Springer
    Der Nervenarzt 69 (1998), S. 901-904 
    Details
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Verschluß der A. carotis interna ; Transitorische ischämische Attacken ; Zerebrovaskuläre Reservekapazität ; Fokale motorische Anfälle ; Key words Carotid occlusive disease ; Cerebral reserve capacity ; Transient ischemic attacks ; Limb shaking
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary This case report intends to focus attention on hemodynamic TIAs as cause of repetitive involuntary movements (RIMs) as differential diagnosis of simple partial motor seizures. We report two patients with episodic unilateral limb shaking lasting up to several minutes and which could be triggered by orthostasis, heat or physical exertion. Repeated EEG recordings revealed no epileptic discharges. In both patients, duplex ultrasonography revealed an occlusion of the internal carotid artery (ICA) contralateral to the side of the RIMs. Blood flow velocities in the middle cerebral artery ipsilateral to ICA occlusion were reduced and vasomotor reactivity to hypercapnia was absent. After elevation of blood pressure both patients became asymptomatic. We suggest that in patients with episodes of RIMs, Doppler sonography and tests of cerebral vascular reserve capacity should be performed to search for a hemodynamic origin of these symptoms.
    Notes: Zusammenfassung Transitorische ischämische Attacken imitieren in seltenen Fällen einfache fokale motorische Anfälle. Am Beispiel von 2 Patienten wird die differentialdiagnostische Abgrenzung und Therapie solcher hämodynamisch bedingter TIA diskutiert. Beide Patienten litten seit mehreren Monaten unter paroxysmalen einseitigen Extremitätenzuckungen, die durch Orthostase, Hitze oder körperliche Anstrengung ausgelöst wurden. Im EEG fand sich kein Hinweis auf eine fokale Erregungssteigerung. Die farbkodierte Duplexsonographie ergab einen Verschluß der A. carotis interna kontralateral zu den Extremitätenzuckungen. Auf der Seite des Verschlusses waren die Blutflußgeschwindigkeiten in der A. cerebri media erniedrigt und die im Doppler-CO2-Test bestimmte zerebrovaskuläre Reservekapazität erschöpft. In beiden Fällen führte eine Anhebung des Blutdrucks zu Beschwerdefreiheit.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001150050361
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    CT and MRI in severe hypophosphataemia with central nervous system involvement (2000)
    Springer
    Neuroradiology 42 (2000), S. 112-114 
    Details
    ISSN: 1432-1920
    Keywords: Key words Hypophosphataemia ; Brain ; Myelinolysis, extrapontine ; Computed tomography ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a 38-year-old woman with extreme hypophosphataemia in whom CT and MRI disclosed bilateral lesions within the basal ganglia, thalamus and occipital lobes. After adequate substitution of phosphate the lesions grossly resolved and the patient recovered. This case is the first to demonstrate that profound changes of serum phosphate may be associated with reversible brain lesions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050026
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Cystic lesions of the pineal region – MRI and pathology (2000)
    Springer
    Neuroradiology 42 (2000), S. 399-402 
    Details
    ISSN: 1432-1920
    Keywords: Key words Pineal region ; Cysts pineal ; Pineocytomas ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Pineal lesions are rare. Tumours in this location comprise 0.4–1 % of intracranial tumours. They grow mainly as solid-mass lesions, and cystic tumours are not common. On MRI, a cystic configuration is associated usually with non-neoplastic pineal lesions rather than with a tumour, but analysis does not allow cystic pineal tumours to be distinguished from glial cysts with certainty. We compared neuroradiological and pathological data from 13 cystic pineal lesions, analysing preoperative MRI. Formalin-fixed, paraffin-embedded surgical specimens were stained routinely and immunocytochemically, using the streptavidin-biotin-complex method. Histology revealed six pineocytomas, four glial cysts, an arachnoid cyst, a low-grade astrocytoma and a teratoma. Signal characteristics of pineocytomas were similar in many respects to those of glial pineal cysts. Histomorphological analysis allowed unambiguous discrimination between pineocytomas and glial pineal cysts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340000308
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...