Palatal myoclonus secondary to hypertrophic olivary degeneration.

The article discusses the use of magnetic resonance imaging (MRI) in the diagnosis of hypertrophic olivary degeneration in a 64-year-old woman. Ischemic infarction and demyelination are among the differential diagnosis of an abnormal localized signal intensity in the olive and pontomedullary area. Also noted are the patterns of hypertrophic olivary degeneration in relation to the primary lesion location. One the common symptoms of the degeneration is palatal myoclonus.