The bones of shoulder joint may get bone tumour or cancer from some other part of the body may spread and reach bones of shoulder. This occurs due to uncontrolled or abnormal growth of cells in the bone that results in the formation of a lump. Shoulder cancer can also originate in the bone marrow, cartilage, and soft tissue. The most common types of cancers are leukemia and multiple myeloma, which form in the bone marrow. Other malignancies that can develop in the shoulder include osteosarcoma, chondrosarcoma, Ewing’s sarcoma and soft tissue sarcomas.
Although the exact cause of tumour is not known but it can be associated with genetics, radiation treatment, and injuries to the bones.
Tumour in the bone may cause symptoms like: