Summary
MRI of four patients with spontaneously ruptured middle cranial fossa dermoids was reviewed. In all patients, MRI clearly demonstrated the primary tumour, and T1-weighted images showed high signal areas with fatfluid levels in the ventricles(3/4) and/or high signal spots in the cerebrospinal fluid (CSF) spaces(4/4). Signal intensity of these areas decreased as images became more heavily T2-weighted, in accordance with the known MRI characteristics of fat. MRI was very sensitive for detection of small fat droplets within CSF and for demonstrating their exact distribution, especially on T1-weighted images.
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© 1991 Springer-Verlag
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Ohkubo, T., Sasaki, Y., Aoki, S., Machida, T., Kokubo, T. (1991). MRI of spontaneously ruptured dermoids in the middle cranial fossa. In: du Boulay, G., Molyneux, A., Moseley, I. (eds) Proceedings of the XIV Symposium Neuroradiologicum. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-49329-4_103
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DOI: https://doi.org/10.1007/978-3-642-49329-4_103
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