The Development of Hypertrophic Inferior Olivary Nucleus in Oculopalatal Tremor

ABSTRACT

Oculopalatal tremor is an acquired clinical condition resulting from the interruption of the dentato-rubro-olivary neuronal pathway. The signal change in inferior olivary nucleus and its hypertrophy on magnetic resonance imaging (MRI) can be observed prior to the development of symptomatic oculopalatal tremor. This is a case of the fourth cranial nerve palsy followed by oculopalatal tremor, and increased signal intensity in inferior olivary nucleus on MRI was observed in 7 months after damage to the dentate-rubro-olivary pathway and 5 months prior to the development of oscillopsia and oculopalatal tremor.

KEYWORDS:

• Double vision
• hypertrophic inferior olivary nucleus
• oculopalatal tremor
• oscillopsia
• trochlear nerve palsy

Declaration of interest

The author reports no conflicts of interest. The author alone is responsible for the content and writing of the article.