Dystonia:Involuntarymovements and prolongedmusclecontractionthat resultintwisting body motions, tremors, andabnormalposture．这些检ts may involve the entire body or only an isolated area. Dystonia can be inherited, may occur sporadically without anygeneticpattern, may be associated with medications (particularlyantipsychoticdrugs), or may be asymptomof certain diseases (for example, a specific form of lung cancer). Some types of dystonia respond todopamine．Dystonia can sometimes also be controlled withsedative-type medications orsurgery．
