Autosomal dominant focal dystonia, DYT25 type is a rare genetic disorder that affects the muscles of the face, neck, and head. It is caused by a mutation in the DYT25 gene, which is located on chromosome 19. Symptoms of this disorder include involuntary muscle contractions, spasms, and abnormal postures of the head, neck, and face. These symptoms can be mild or severe and can affect one or both sides of the body. Treatment typically involves medications, physical therapy, and botulinum toxin injections.