Elevated circulating chitotriosidase activity

What it means

Increased activity or concentration of the enzyme chitotriosidase. Serum chitotriosidase is a biomarker that has shown high specificity and sensitivity in patients with sarcoidosis.

Significantly higher chitotriosidase activity can be observed in sarcoidosis patients than in healthy controls.

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