Essential Palatal Tremor 929-1
Figure 1. Aetiology of 287 cases with RPM. Note that more than a quarter belong to essential RPM
Figure 2. Distribution of 287 cases with symptomatic and essential RPM according to the year of publication. Diamonds symptomatic RPM (n=210) squares essential RPM (n=77)
Figure 3. The myoclonic triangle.
Gallet, J. (1927) Le Nystagmus du voile: Le syndrome myoclonique de la calotte protuberantielle thesis. Paris. Gullain, G. Mollaret, P. (1931) Deux cas de myoclonies synchrones et rythmees velo-pharyngo-laryngo-oculo- diaphragmatiques. Le Probleme antomique et physiopathologique de ce syndrome. Revue Neurologique, 2, Klein, H. (1907) Zur Patholgoic de kontinuierlichen rhythmischen Krampfe der schlingmuskulatur (2 Falle von Erweichungscherden im Kleinhirn). Neurologisches Centralblatt, 26, Spencer, H.R (1986) Pharnygeal and laryngeal nystagmus. Lancet, II, 702.