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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Nägele, T., Klose, U., Grodd, W. et al. Three-dimensional chemical shift-selective MRI of a ruptured intracranial dermoid cyst. Neuroradiology 38, 572–574 (1996). https://doi.org/10.1007/BF00626102
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DOI: https://doi.org/10.1007/BF00626102