Rare diseases · Sign or symptom
Dilatation of mesenteric artery
HP:0011934
What it means
Abnormal outpouching or sac-like dilatation in the wall of the inferior mesenteric artery or superior mesenteric artery .
Aneurysm is considered a severe form of dilatation.
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: Mesenteric artery aneurysm
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.