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 | Couldwell, William T.; Osborne, Anne G. | Hypertrophic olivary degeneration after surgical removal of cavernous malformations of the brain stem: report of four cases and review of the literature | Background: Hypertrophic olivary degeneration (HOD) is a pathological phenomenon that occurs after injury to the dentato-olivary pathway. Its hallmarks include hypertrophy of the olive with increased T2 signal intensity on magnetic resonance imaging, and often manifests with palatal tremor and osci... | Hypertrophic olivary degeneration; Surgery; Cavernous malformation; Brainstem | 2008 |