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DOI: 10.1055/s-2006-944944
Schädelbasistumoren und ihre Differenzialdiagnose
Differential Diagnosis of Skull Base TumorsPublikationsverlauf
Publikationsdatum:
22. November 2006 (online)
![](https://www.thieme-connect.de/media/rad-u2d/200604/lookinside/thumbnails/10.1055-s-2006-944944-1.jpg)
Zusammenfassung
Die Schädelbasis weist zahlreiche Durchbrechungen (Foramina, Fissuren) auf. Aggressiv wachsende Schädelbasistumoren neigen deshalb dazu, intra- wie extrakraniell zu wachsen. In der Ausbreitungsdiagnostik solcher Tumoren, die starken Einfluss auf die Behandlung hat, ist die Magnetresonanztomographie (MRT) wegen ihres hohen Weichteilkontrasts der Computertomographie (CT) überlegen. Zur Beurteilung des Knochens eignet sich jedoch die CT mehr, zumal heute meist Multidetektorsysteme eingesetzt werden, die detailreiche multiplanare Rekonstruktionen erlauben. Gute Kenntnisse der Schädelbasisanatomie erhöhen die Qualität der Ausbreitungsdiagnostik und ermöglichen eine fundiertere Differenzialdiagnostik.
Abstract
The skull base is characterized by multiple fissures and foramina. Aggressively growing tumors thus tend to spread intra- as well as extracranially. To assess the therapeutically relevant extent of such tumors, magnetic resonance imaging (MRI), due to its high contrast resolution, is better suited than computed tomography (CT). To assess the bony structures, however, CT remains the superior imaging modality; when using modern multidetector systems, high definition multiplanar reformations can be obtained routinely. A thorough knowledge of skull base anatomy improves the assessment of tumor extent and enhances the quality of differential diagnosis.
Key words
Skull base; MRI; CT; Foramina
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Bodo Kress
Neurologische Klinik
Universitätsklinikum Heidelberg · Im Neuenheimer Feld 400 · 69120 Heidelberg
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