A slowly progressive pyramidopallidal degeneration marked by involuntary crying and laughing; hypertonus and rigidity of the locomotor, cervical and facial muscles, and multiple other features.
- J. Lhermitte, L. Cornil, Quesnel:
Le syndrome de la dégénération pyramido-pallidale progressive.
Revue neurologique, Paris, 1920, 27: 262-269.
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