Dystonia
Synonyms
Diurnal Dystonia
Dystonia, Diurnal
Dystonia, Limb
Dystonia, Muscle
Dystonia, Paroxysmal
Limb Dystonia
Muscle Dystonia
Paroxysmal Dystonia
An attitude or posture due to the co-contraction of agonists and antagonist muscles in one region of the body. It most often affects the large axial muscles of the trunk and limb girdles. Conditions which feature persistent or recurrent episodes of dystonia as a primary manifestation of disease are referred to as DYSTONIC DISORDERS. (Adams et al., Principles of Neurology, 6th ed, p77)