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MR Imaging of Spinal Tumors in Children with Neurofibromatosis 1

Pek-Lan Khong1, Winnie H. S. Goh2, Virginia C. N. Wong2, Cheuk-Wing Fung2 and Gaik-Cheng Ooi1

1 Department of Diagnostic Radiology, Rm. 406, Block K, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Rd., Hong Kong.
2 Department of Paediatrics, Queen Mary Hospital and Duchess of Kent Children's Hospital, The University of Hong Kong, Hong Kong.



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  		Fig. 1. —Coronal spin-echo T1-weighted MR image of 11-year-old boy shows dumbbell neurofibroma of right L2 nerve root extending into intradural space and causing displacement of cauda equina (arrow). Tumor was subsequently resected, and pathology confirmed neurofibroma.

 


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  		Fig. 2A. —18-year-old man with upper thoracic paraspinal neurofibroma. Coronal spin-echo T1-weighted MR image shows paraspinal mass (arrow) in upper thoracic region that was associated with scoliosis.

 


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  		Fig. 2B. —18-year-old man with upper thoracic paraspinal neurofibroma. Axial fast spin-echo T2-weighted MR image with fat suppression shows same paraspinal tumor (arrow), which is markedly hyperintense but has hypointense center.

 


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  		Fig. 3A. —14-year-old boy with plexiform neurofibroma of lumbar and sacral plexus. Coronal contrast-enhanced T1-weighted MR images of the lumbar (A, B) and sacral (C) spine show bilateral plexiform dumbbell neurofibromas that enhance with administration of contrast material.

 


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  		Fig. 3B. —14-year-old boy with plexiform neurofibroma of lumbar and sacral plexus. Coronal contrast-enhanced T1-weighted MR images of the lumbar (A, B) and sacral (C) spine show bilateral plexiform dumbbell neurofibromas that enhance with administration of contrast material.

 


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  		Fig. 3C. —14-year-old boy with plexiform neurofibroma of lumbar and sacral plexus. Coronal contrast-enhanced T1-weighted MR images of the lumbar (A, B) and sacral (C) spine show bilateral plexiform dumbbell neurofibromas that enhance with administration of contrast material.

 

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