Magnetic Resonance Imaging (MRI) - Study of the soft tissues and structures inside the knee or other joint or body part. Imaging has greatly improved the ability of a physician to pinpoint a correct and accurate diagnosis.
 
Malignant - Tending to become progressively worse and to result in death. Having the properties of multiplying, invasion and metastasis, said of tumors.
 
Medial - Toward the inside or center of the body. (Your big toe is medial to your small toe.)
 
Medial Collateral Sprain (MCL) - MCL injuries are classified as grades I-III. Grade I injuries appear normal in an MRI (Magnetic Resonance Imaging), but there is subcutaneous tissue swelling (edema). Grade III injuries indicate a complete disruption of the ligament with associated soft tissue swelling (edema), and hemorrhage.
 
Medical Collateral Ligament - A ligament connecting the thigh bone to the shin bone on the inner side of your knee.
 
Meniscus - A “C” shaped cartilage in the knee which provides a stabilization system for the knee and a measure of shock absorption. See Encyclopedia
 
Muscle - Body tissues which consist of cells that contract when lengthened or straightened.
 
Myozitis - Inflammation of the muscle.