Abstract
We report the use of MRI in the diagnosis, follow-up and therapeutic management of three cases of intralabyrinthine Schwannoma. The diagnosis was based on the history and initial and follow-up MRI findings. The main feature suggesting the diagnosis was a nodular intralabyrinthine mass of low signal intensity on T2-weighted images, and high or isointense signal on T1-weighted images (relative to cerebrospinal fluid), which showed contrast enhancement. Follow-up imaging showed growth of the tumour in one patient. One patient underwent surgery for severe tinnitus. To detect these lesions, MRI should be focussed on the inner ear, using thin-section T2-weighted and T1-weighted images before and after contrast medium. MRI allowed informed surgical planning.
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Received: 26 March 1997 Accepted: 27 January 1998
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Deux, J., Marsot-Dupuch, K., Ouayoun, M. et al. Slow-growing labyrinthine masses: contribution of MRI to diagnosis, follow-up and treatment. Neuroradiology 40, 684–689 (1998). https://doi.org/10.1007/s002340050665
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DOI: https://doi.org/10.1007/s002340050665