An MRI of the left shoulder provides detailed images of bones (humeral head, glenoid), joint cartilage and labrum, rotator cuff tendons and muscles, biceps tendon, ligaments and joint capsule, and bursae. It detects tendon tears, labral injuries, impingement, cartilage degeneration, bone marrow changes, joint effusion, inflammation, fractures, infection or tumors, and postsurgical alterations to guide diagnosis and treatment.

Shoulder MRI costs vary widely by country, facility, and whether contrast is used. Typical ranges: United States $400–$3,500 (often $1,000–$2,500 in practice); United Kingdom — free on the NHS or about £150–£600 privately; India ₹2,000–₹12,000. Adding contrast or a specialist radiologist report can raise the price by roughly $100–$1,000 (or local equivalent).

An MRI of the left shoulder typically takes about 20–40 minutes for the scan itself. Including check‑in, positioning and instructions, expect 30–60 minutes at the clinic. If intravenous contrast is needed, add roughly 10–20 minutes for administration and extra imaging, so total time may be up to about 60–90 minutes. Actual duration varies by facility and protocol.

MRI of the shoulder is generally painless and noninvasive. You may feel discomfort from holding a fixed position, pressure from the shoulder coil, or worsening of pre-existing shoulder pain. The scanner is noisy and can trigger claustrophobia for some. If contrast is used, you might feel a brief sting at the injection site. Technologists can provide padding, breaks, ear protection, or medication if needed.

MRI can detect shoulder nerve injury indirectly by showing muscle denervation signs such as edema, fatty infiltration, and atrophy, and can directly image larger nerves or the brachial plexus using dedicated MR neurography. Routine shoulder MRI may miss subtle peripheral nerve lesions, so electromyography/nerve conduction studies plus clinical examination are often needed to confirm and localize nerve damage.

A doctor orders a shoulder MRI to evaluate soft‑tissue and joint problems not seen on X‑ray: rotator cuff or labral tears, tendonitis or bursitis, cartilage damage, occult fractures, shoulder instability, unexplained persistent pain, weakness or limited motion, suspected infection or tumor, and to guide surgical planning. MRI gives detailed images of muscles, tendons, ligaments, cartilage, bone marrow, and surrounding structures.