Rare diseases · Sign or symptom

Elevated circulating long chain fatty acid concentration

HP:0003455

What it means

Increased concentration of long-chain fatty acids in the blood circulation.

This feature can be measured in plasma, as well as in cultured fibroblasts of amniocytes.

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

Also called: Elevated long chain fatty acids · Elevated serum long-chain fatty acids · Increased serum long-chain fatty acids

Elevated circulating long chain fatty…

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.