RT Journal Article
SR Electronic
T1 Prominent Activation of the Putamen during Essential Palatal Tremor: A Functional MR Imaging Case Study
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1272
OP 1274
VO 27
IS 6
A1 S. Haller
A1 D.T. Winkler
A1 C. Gobbi
A1 P. Lyrer
A1 S.G. Wetzel
A1 A.J. Steck
YR 2006
UL http://www.ajnr.org/content/27/6/1272.abstract
AB Summary: Palatal tremor (PT), also known as palatal myoclonus, is defined by short rhythmic contractions of the palatal musculature. Functional MR imaging (fMRI) revealed prominent bilateral neuronal activation in the putamen associated with essential palatal tremor (EPT) in a 41-year-old man. This implies a central role of the putamen in EPT, most likely as a consequence of diminished inhibition in an afferent pathway. Because fMRI primarily detects activations, dysfunctional areas remain obscure. The present functional study complements previous pathologic studies, which associated PT with lesions to dentate nucleus, red nucleus, and the inferior olive (Guillain-Mollaret triangle).