Rare diseases · Sign or symptom
Abnormal fibula morphology
Abnormality of the calf bone
HP:0002991
What it means
An anomaly of the calf bone (fibula), one of the two bones of the calf.
Rare diseases that can present with this25
Very common80–99%
8Common30–79%
7Sometimes5–29%
10- 2q31.1microdeletion syndrome
- Benign schwannoma
- Ectodermal dysplasia-intellectual disability-central nervous system malformation syndrome
- Growth delay-hydrocephaly-lung hypoplasia syndrome
- Jackson-Weiss syndrome
- Mietens syndrome
- Multiple osteochondromas
- Occipital horn syndrome
and 2 more in this range
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: Abnormality of fibula morphology
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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.