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Nine progressive supranuclear palsy (PSP) patients were studied with computerized tomography (CT) and magnetic resonance (MR) in order to determine the efficacy of each in detecting atrophy of the brainstem. Three additional PSP patients were evaluated with MRI for quantitative (electronic) measurements of the colliculi, pons and midbrain tegmentum. Both CT(More)
Thin-section computed tomographic (CT) scans of 3 and 1.5 mm thickness were obtained using the Philips Tomoscan 310 and General Electric 8800 CT/T scanners in the study of 10 consecutive patients with progressive supranuclear palsy (PSP) and 31 patients with other diseases. Marked midbrain and moderate pontine atrophy, a dilated third ventricle, and(More)
The clinical manifestations of 24 cases and the autopsy findings of 6 cases of extremity myorhythmia are presented. Extremity myorhythmia is that form of myorhythmia in which rhythmic alternating movements predominantly involve the limbs. The main difference between the tremor of extremity myorhythmia and the tremor of parkinsonism is the slower tremor(More)
Thin-section computed tomographic (CT) scans of 1.5 mm thickness were obtained in the study of 44 consecutive patients with Huntington's disease (HD) and six patients with sporadic progressive chorea and dementia. Mild to moderate midbrain and pontine atrophy, a dilated third ventricle, and enlarged quadrigeminal plate cisterns were observed in most cases(More)
Reports of tremor in progressive supranuclear palsy (PSP) have been infrequent; some authors indicate that tremor is never seen in PSP. Five patients with PSP and tremor are presented. Our series of cases and those reviewed in the literature suggest that tremor occurs in 12-16% of PSP cases. The rest tremor observed in 3 of our cases differed from the(More)
Palatal myoclonus associated with extremity movements such as myoclonus or tremor is uncommon and reports are rare. Five patients with palatal myoclonus and a rest tremor are presented. In four patients, a slow rest tremor (3 Hz or less) was present. The tremor persisted on sustained posture and finger-to-nose maneuvers and was usually not synchronous with(More)