Palatal myoclonus induced by extirpation of a cerebellar astrocytoma. Case report.
A 45-year-old woman developed a rare case of palatal myoclonus with no other neurological signs after undergoing extirpation of a small cerebellar low-grade astrocytoma that was located in the right dentate nucleus. The palatal myoclonus has persisted for 4 years after the operation. Magnetic resonance T2-weighted imaging revealed a high-intensity lesion in the left inferior olive. Palatal myoclonus associated with the removal of cerebellar tumors is unusual but may easily be overlooked.
Nishigaya
K
K
Iwata Neurosurgical Hospital, Shizuoka, Japan.
Kaneko
M
M
Nagaseki
Y
Y
Nukui
H
H
D001254:Astrocytoma / Q000473:pathology / Q000601:surgery*; D002528:Cerebellar Neoplasms / Q000473:pathology / Q000601:surgery*; D002529:Cerebellar Nuclei / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009207:Myoclonus / Q000209:etiology*; D009847:Olivary Nucleus / Q000473:pathology; D010156:Palatal Muscles / Q000503:physiopathology*; D010609:Pharyngeal Muscles / Q000503:physiopathology; D011183:Postoperative Complications