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Diffusion-weighted MRI postoperative assessment of an epidermoid tumour in the cerebellopontine angle

  • DIAGNOSTIC NEURORADIOLOGY
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Abstract

Cerebellopontine angle epidermoid tumour generally has a typical appearance with conventional MRI sequences. The lesion is irregular in shape and gives slightly higher signal than cerebrospinal fluid on T1- and T2-weighted images, with a characteristic marbled inner pattern on T1-weighted images. Diffusion-weighted imaging (DWI) can be useful for the diagnosis of an atypical epidermoid tumour. Our case report illustrates the usefulness of DWI for postoperative assessment of residual foci of tumour. The specific appearance of an epidermoid tumour is illustrated, with emphasis on apparent diffusion coefficient (ADC) measurements.

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Authors and Affiliations

  1. Department of Medical Imaging, Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Avenue Hippocrate 10, B-1200 Brussels, Belgium (e-mail: cosnard@rdgn.ucl.ac.be, Tel.: + 32-2-7 64 29 33, Fax: + 32-2-7 70 55 74), , , , , , BE

    S. Dechambre, T. Duprez, F. Lecouvet & G. Gosnard

  2. Department of Neurosurgery, Cliniques Universitaires Saint Luc, Université Catholique de Louvain, Aveune Hippocrate 10, B-1200 Brussels, Belgium, , , , , , BE

    C. Raftopoulos

Authors
  1. S. Dechambre
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  2. T. Duprez
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  3. F. Lecouvet
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  4. C. Raftopoulos
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  5. G. Gosnard
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Additional information

Received: 20 April 1999 Accepted: 7 May 1999

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Dechambre, S., Duprez, T., Lecouvet, F. et al. Diffusion-weighted MRI postoperative assessment of an epidermoid tumour in the cerebellopontine angle. Neuroradiology 41, 829–831 (1999). https://doi.org/10.1007/s002340050850

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  • DOI: https://doi.org/10.1007/s002340050850

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