Bone marrow edema

Bone marrow edema 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

Etiology

There is a long (long) list of possible causes of this finding:

Radiographic features

MRI

Bone marrow edema 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.

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Article information

rID: 62224
Synonyms or Alternate Spellings:
  • Marrow edema
  • Marrow oedema
  • Bone marrow edema

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