Bilateral olivary hypertrophy after unilateral cerebellar infarction.
We describe a case of bilateral olivary hypertrophy and palatal tremor after unilateral cerebellar infarction. Hypertrophic olivary degeneration (HOD) is associated with hypersignal in the inferior olivary nucleus (ION), on T2-weighted images. HOD has been more often observed ipsilaterally to a central tegmentum tract lesion or contralaterally to a dentate nucleus or a superior cerebellar peduncle lesion. Double innervation of each ION from either dentate nucleus may have underlied the imaging and clinical findings in this 63 year-old male patient.
Conforto
Adriana Bastos
AB
Division of Neurology Hospital das Clínicas/ São Paulo University, São Paulo SP, Brasil.
Smid
Jerusa
J
Marie
Suely Kazue Nagahashi
SK
Ciríaco
Jovana Gobbi Marchesi
JG
Santoro
Patricia Paula
PP
Leite
Claudia da Costa
Cda C
Mansur
Letícia Lessa
LL
Scaff
Milberto
M
D002544:Cerebral Infarction / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D006984:Hypertrophy / Q000175:diagnosis / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009847:Olivary Nucleus / Q000473:pathology*