Hypertrophic olivary degeneration

Case contributed by Frank Gaillard

Cavernous malformation of midbrain resulting in bilateral (right > left) increased T2 signal and slight mass effect of the inferior olivary nuclei, suggesting the diagnosis of hypertrophic olivary degeneration.

  • Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Case Discussion

This case is subtle and may be unilateral (right only), although increased T2 signal is seen in both olives. Palatal myoclonus would help confirm the diagnosis. 

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