Bone marrow edema of the shoulder

Bone marrow is a semi-solid tissue which is found within the spongy or cancellous portions of bone. It is responsible for the production of new blood cells. Bone marrow edema is the term used when there is a fluid collection within the bone marrow. It is usually presence when there is an underlying condition. Conditions it could be related to can include: trauma (bone bruise), microtrabecular fracture, arthropathy, decreased blood flow, infection, post-operative changes, chemotherapy, bone metastases, or arthritis.