MRI of Shoulder Metastasis

Shoulder metastasis refers to the spread of cancer cells from their original site to the shoulder region. This is a secondary cancer, meaning it originates elsewhere in the body and spreads to the shoulder.

Causes

The primary cause of shoulder metastasis is the spread of cancerous cells from a primary tumor site to the shoulder. This can occur through the bloodstream or lymphatic system. Common primary cancer sites that may metastasize to the shoulder include the breast, lung, prostate, kidney, and thyroid cancers.

Symptoms

• Pain: Persistent or worsening pain in the shoulder, which may increase at night or during activity.
• Swelling or Mass: Noticeable swelling or a palpable mass in the shoulder area.
• Decreased Mobility: Limited range of motion in the shoulder or arm.
• Neurological Symptoms: Tingling, numbness, or weakness in the arm or hand, if nerves are affected.
• Bone Fractures: Increased risk of fractures in the affected area due to weakened bone structure.
• General Cancer Symptoms: Weight loss, fatigue, and general malaise, especially if the metastasis is part of advanced cancer spread.

Treatment

The treatment of shoulder metastasis is often multifaceted and depends on the primary cancer type, the extent of the metastasis, the patient’s overall health, and other factors. Common treatment approaches include:

• Radiation Therapy: Used to shrink tumors and reduce pain.
• Surgery: In some cases, surgical intervention may be necessary to remove the tumor, relieve pressure on nerves, or stabilize the shoulder.
• Chemotherapy: Systemic treatment to target cancerous cells throughout the body.
• Targeted Therapy: Medications that specifically target cancer cells with certain characteristics.
• Physical Therapy: To maintain mobility and function in the shoulder and arm.