You probably have motion artifact on your images that looks unusual. Unless you have spent significant time in Africa and even then in rare circumstances, it is highly unlikely that you have a worm in your cord region.
Remember that taking an MRI is like having a picture taken from the civil war period. You need to stay extremely still or the picture will be blurred. There are also processes that cannot be stopped during the examination (breathing, blood flow, CSF flow) that can also cause artifact.
Look to the radiologist report to see if he or she comments on this unusual visual finding.
Dr. Corenman
PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
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.