Muscles can be imaged on an MRI but it is unusual that muscles tears would cause your symptoms. Injections are not just for treatment but are very valuable to diagnose conditions. If the thoracic disc hernation is causing your symptoms, a selective nerve root block will give you temporary relief of your symptoms. See “pain diary” to understand this concept.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.