Elevated circulating calprotectin concentration

What it means

The concentration of calprotectin in the blood circulation is above the upper limit of normal.

Calprotectinis an acute-phase protein produced by monocytes and neutrophils in the circulation and inflamed tissues.

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