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MRI neurography and diffusion tensor imaging of a sciatic perineuroma in a child

Merlini, Laura ; Viallon, Magalie ; De Coulon, Geraldo ; Lobrinus, Johannes ; Vargas, Maria

In: Pediatric Radiology, 2008, vol. 38, no. 9, p. 1009-1012

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    Title
    • MRI neurography and diffusion tensor imaging of a sciatic perineuroma in a child
    Author
    • Merlini, Laura. Pediatric Radiology Unit, University of Geneva Children's Hospital, Rue Willy-DonzĂ© 6, 1205, Geneva, Switzerland
    • Viallon, Magalie. Department of Radiology, Geneva University Hospital, Geneva, Switzerland
    • De Coulon, Geraldo. Unit of Pediatric Orthopedics, Geneva University Hospital, Geneva, Switzerland
    • Lobrinus, Johannes. Department of Pathology, Geneva University Hospital, Geneva, Switzerland
    • Vargas, Maria. Unit of Neuroradiology, Geneva University Hospital, Geneva, Switzerland
    Document Type
    • Postprint
    OAI-PMH Identifier
    • oai:doc.rero.ch:321124
    Summary
    Perineuroma, rare in children, presents as a painless mononeuropathy of a major nerve trunk. Resection of the lesion with end-to-end sural nerve grafting appears to be the treatment of choice. This technique is not recommended if the unhealthy segment of nerve is too long or if spinal roots are involved. However, in children, reports of direct MR evaluation of nerve trunks and of the exiting nerve roots are limited. We report a 7-year-old girl with an intramural sciatic nerve perineuroma in whom the diagnosis was made by MRI and confirmed by biopsy. The MR protocol combining 3-D T2-W STIR SPACE, fat-saturated gadolinium-enhanced T1-W images, and diffusion tensor imaging with tractography was a valuable tool for depicting peripheral nerve and roots in order to plan surgical treatment