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RT Journal Article
SR Electronic
T1 MR Imaging in Two Cases of Subacute Denervation Change in the Muscles of Facial Expression
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 880
OP 884
VO 22
IS 5
A1 Fischbein, Nancy J.
A1 Kaplan, Michael J.
A1 Jackler, Robert K.
A1 Dillon, William P.
YR 2001
UL http://www.ajnr.org/content/22/5/880.abstract
AB Summary: Denervation changes in muscle following damage to cranial and peripheral nerves can be observed on both CT and MR imaging studies. These findings are well described for cranial nerves (CN) V, X, XI, and XII. The CT findings of denervation atrophy due to CN VII dysfunction have been reported. We describe the MR imaging findings in two patients with perineural spread of tumor along CN VII. Both patients showed T2 prolongation and postcontrast enhancement in muscles of facial expression, suggestive of subacute denervation changes.