Dystonia 7, Torsion, also known as dystonia-7, torsion, is related to dystonia and cervical dystonia, and has symptoms including dystonia, torticollis and tremor. An important gene associated with Dystonia 7, Torsion is DYT7 (Dystonia 7, Torsion (Autosomal Dominant)). Affiliated tissues include skeletal muscle, and related phenotypes are dysphonia and skeletal muscle hypertrophy