Bone marrow edema of the bony skeleton

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 present when there is an underlying condition. Conditions causing bone marrow edema can include: trauma (bone bruise), microtrabecular fracture, arthropathy, decreased blood flow, infection, post-operative changes, chemotherapy, or bone metastases.