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Thermally Induced Transient Trigeminal Sensory Neuropathy: Imaging Findings

Ling-Ling Chana, Franco DeMontea and Lawrence E GinsbergGo,a

a From the Departments of Diagnostic Radiology (L.-L.C., L.E.G.), and Neurosurgery (F.D.), The University of Texas M.D. Anderson Cancer Center, Houston, TX.



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  		FIG 1.  MR images of a 38-year-old man with numbness in the distribution of the mandibular division of the right trigeminal nerve, which occurred after a scalding injury to his tongue. Coronal high-resolution fat-suppressed, contrast-enhanced T1-weighted (600/15/2 [TR/TE/excitations]) MR images, obtained at the time of presentation, show striking enhancement and thickening of the mandibular nerve (V3) at the foramen ovale (arrow) and upper masticator space (arrowheads) on the right. FIG 2. Follow-up image, obtained 4 months later after the spontaneous and almost total resolution of the patient's symptoms. Coronal fat-suppressed, contrast-enhanced T1-weighted (450/9/2) MR image shows complete resolution of the enhancement





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