Three-dimensional chemical shift-selective MRI of a ruptured intracranial dermoid cyst |
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| Authors: | T. Nägele U. Klose W. Grodd H. Opitz F. Schick A. Steinbrecher K. Voigt |
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| Affiliation: | (1) Department of Neuroradiology, University of Tübingen, Hoppe-Seyler-Strasse 3, D-72076 Tübingen, Germany;(2) Department of Neurosurgery, University of Tübingen, Tübingen, Germany;(3) Institute of Physics, University of Tübingen, Tübingen, Germany;(4) Department of Neurology, University of Tübingen, Tübingen, Germany |
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| Abstract: | ![]()
We report a man with a ruptured intracranial dermoid cyst, suffering from headache, nausea, vomiting and a generalised seizure. MRI was performed before and 2 weeks after surgical resection. On T1-weighted images the tumour gave high signal, as did fatty material in the frontal and parietal brain sulci. Identification of this hyperintense material as lipids was possible by chemical-shift-selective 3 D gradient-echo imaging, which provided excellent contrast between the subarachnoid lipids and the adjacent normal brain, with a good spatial resolution. Possible complications of subarachnoid and intraventricular lipid particles after dermoid cyst rupture are discussed and the diagnostic value of 3 D chemical-shift-selective additional to conventional T1-weighted spin-echo images in identification of even small amounts of fat is emphasised. |
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| Keywords: | Intracranial dermoid cyst 3D chemical-shift-selective imaging Magnetic resonance imaging |
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