Bone marrow edema

What it means

Accumulation of excess fluid in the bone marrow.

This condition is typically detected using magnetic resonance imaging, where it appears as an area of increased signal intensity on fluid-sensitive sequences.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category