Bone marrow edema
Updates to Article Attributes
Body
was changed:
Bone marrow oedema is the term given to abnormal fluid signal seen within the bone marrow on MRI. It is a non-specific, yet important, finding usually indicating the presence of an underlying pathology.
Pathology
Aetiology
There is a long (long) list of possible causes of this finding:
- primary:bone marrow oedema syndrome (no cause found)
- trauma: fractures, bone contusion, ligamental injury, etc.
- arthropathy: e.g. degenerative joint disease, rheumatoid arthritis, etc.
- hypoperfusion: e.g. sickle cell disease
- infective: e.g. osteomyelitis, diskitis, septic arthritis
-
iatrogenic: e.g. chemotherapy,
post-operativepostoperative, chronic corticosteroid therapy - neurological: neuropathic arthropathy
- neoplastic: malignancies e.g. bone metastases, and benign e.g. giant cell tumour, chondroblastoma, osteoid osteoma
- miscellaneous: e.g. chronic renal failure
Radiographic features
MRI
Bone marrow oedema is generally primarily identified on MRI.
There will be intermediate T1 signal, with high T2 signal in the fat of the bone marrow (usually fat-suppressed sequences required to see the increased T2 signal).
However other imaging modalities may then have a role in investigating the underlying cause.
-<p><strong>Bone marrow oedema</strong> is the term given to abnormal fluid signal seen within the bone marrow on MRI. It is a non-specific, yet important, finding usually indicating the presence of an underlying pathology.</p><h4>Pathology</h4><h5>Aetiology</h5><p>There is a long (long) list of possible causes of this finding:</p><ul>- +<p><strong>Bone marrow oedema</strong> is the term given to abnormal fluid signal seen within the bone marrow on MRI. It is a non-specific, yet important finding usually indicating the presence of an underlying pathology.</p><h4>Pathology</h4><h5>Aetiology</h5><p>There is a long (long) list of possible causes of this finding:</p><ul>
-<strong>primary</strong>:<strong> </strong><a href="/articles/bone-marrow-oedema-syndrome">bone marrow oedema syndrome</a> (no cause found)</li>- +<strong>primary</strong>:<strong> </strong><a title="Bone marrow oedema syndrome" href="/articles/bone-marrow-oedema-syndrome">bone marrow oedema syndrome</a> (no cause found)</li>
-<strong>iatrogenic</strong>: e.g. chemotherapy, post-operative, chronic corticosteroid therapy</li>- +<strong>iatrogenic</strong>: e.g. chemotherapy, postoperative, chronic corticosteroid therapy</li>
-<strong>neoplastic</strong>: malignancies e.g. <a href="/articles/skeletal-metastasis-1">bone metastases</a>, and benign e.g. <a href="/articles/giant-cell-tumour-of-bone">giant cell tumour</a>- +<strong>neoplastic</strong>: malignancies e.g. <a href="/articles/skeletal-metastasis-1">bone metastases</a>, and benign e.g. <a href="/articles/giant-cell-tumour-of-bone">giant cell tumour</a>, <a href="/articles/chondroblastoma">chondroblastoma</a>, <a href="/articles/osteoid-osteoma">osteoid osteoma</a>
Sections changed:
- Signs