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Abstract

Cerebellar MR changes in patients with olivary hypertrophic degeneration.

S J Kim, J H Lee and D C Suh
American Journal of Neuroradiology October 1994, 15 (9) 1715-1719;
S J Kim
Department of Radiology, College of Medicine, Dankook University, Choong Nam, Korea.
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J H Lee
Department of Radiology, College of Medicine, Dankook University, Choong Nam, Korea.
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D C Suh
Department of Radiology, College of Medicine, Dankook University, Choong Nam, Korea.
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Abstract

PURPOSE To describe MR changes in the cerebellar cortex and the dentate nucleus in patients with inferior olivary nucleus hypertrophy.

METHODS MR scans of 11 patients with palatal myoclonus were reviewed. Among them, we selected 5 cases that showed lesions in the central tegmental tract and the ipsilateral inferior olivary nucleus. We evaluated MR changes of the cerebellar cortices and dentate nuclei contralateral to the affected inferior olivary nuclei. Evaluation was performed by side-to-side comparison in each case. Six cases were excluded, because comparison of the cerebellar hemispheres or dentate nuclei with those of the opposite sides was not possible.

RESULTS The dentate nuclei opposite affected inferior olivary nuclei showed mild to moderate shrinkage of the normal low-signal areas and increases in signal intensity on T2-weighted images in 4 of 5 patients. The cerebellar cortices on the same sides as the involved dentate nuclei showed atrophic changes in 4 of 5 patients.

CONCLUSION Our MR findings suggest that there is a degenerative process involving the dentate nucleus and the cerebellar cortex associated with the hypertrophic degeneration of the inferior olivary nucleus.

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American Journal of Neuroradiology
Vol. 15, Issue 9
1 Oct 1994
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Cerebellar MR changes in patients with olivary hypertrophic degeneration.
S J Kim, J H Lee, D C Suh
American Journal of Neuroradiology Oct 1994, 15 (9) 1715-1719;

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Cerebellar MR changes in patients with olivary hypertrophic degeneration.
S J Kim, J H Lee, D C Suh
American Journal of Neuroradiology Oct 1994, 15 (9) 1715-1719;
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