The hypertrophic degeneration of the olives.
D000368:Aged; D001927:Brain Diseases / Q000473:pathology*; D001933:Brain Stem; D002531:Cerebellum; D006801:Humans; D006984:Hypertrophy; D008297:Male; D008526:Medulla Oblongata; D008875:Middle Aged; D009410:Nerve Degeneration; D009847:Olivary Nucleus / Q000473:pathology*