Ketosis

What it means

Presence of elevated levels of ketone bodies in the body.

Ketone bodies are formed from acetyl-CoA in the liver by ketogenesis when the liver glycogen stores are depleted. Ketone bodies are acidic, and ketoacidosis ensues if the compensatory mechanisms are overloaded. The predominant ketones being acetoacetate, acetone, and beta-hydroxybutyrate.

Rare diseases that can present with this11

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, and Orphanet separately records 1 disease where this sign is specifically absent. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Hyperketosis