AJDRAJNR - American Journal of Neuroradiology

Published ahead of print on November 26, 2007
doi: 10.3174/ajnr.A0866
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Perineural Invasion through the Maxillary Division of the Right Trigeminal Nerve in a Rare Case of Nasolabial Malignant Peripheral Nerve Sheath Tumor

C. Sempere-Ortegaa and J. Martinez-San-Millana

a From the Department of Radiology, Hospital Ramon y Cajal, Madrid, Spain


Figure 1
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  		Fig 1. A, Curved saggital reconstruction image of a contrast-enhanced CT scan shows a submucose mass in the nasolabial area (straight arrow) with enlargement of the Vb nerve (curved arrow) all the way to the pterygopalatine fossa. Short arrows indicate buccal mucosa, and the asterisk indicates the pterygopalatine fossa. B, Contrast-enhanced oblique saggital fat-suppressed T1-weighted MR image shows an enhancing mass (straight arrow) in the nasolabial area with perineural spread through maxillary nerve (curved arrow).


Figure 2
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  		Fig 2. Coronal reconstruction contrast-enhanced CT scan demonstrates enlargement of the right maxillary nerve (arrow).


Figure 3
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  		Fig 3. A, Curved axial reconstruction of a contrast-enhanced CT scan shows the original mass in the right nasolabial (arrow) area followed by a tubular-shaped enlargement of the maxillary nerve. B, Same image as in A with bone windowing. Note the infraorbital canal enlargement (arrow).





Copyright © 2009 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X