Rare diseases · Sign or symptom

Metaphyseal enchondromatosis

HP:0005868

What it means

An enchondroma is a benign growth of cartilage that develops within the medullary cavity of bone. Enchondromatosis refers to the presence of multiple enchondromas, and this term refers to the presence of multiple enchondromas within the medulla of metaphyseal bone. Radiographically an enchondroma presents a an oval, linear, or pyramidal osteolytic (radiolucent) lesion with well defined margins.

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

Metaphyseal enchondromatosis

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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.