Rare diseases · Sign or symptom
Anti-cytosolic-5-nucleotidase-1A antibody positivity
HP:0034153
What it means
The presence of autoantibodies (immunoglobulins) in the blood circulation that react against cytosolic-5-nucleotidase-1A (cN1A).
Rare diseases that can present with this2
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: Anti-cN1A antibody positivity
Tracking symptoms like this for someone? Eleplan keeps symptoms, diagnoses, medications and every specialist in one plan.
Start free with EleplanThis 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.