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Start free with EleplanFibro-adipose vascular anomaly
ORPHA:699683Disease
Also called FAVA · Fibro-fatty vascular anomaly · Fibroadipose vascular anomaly
What it is
A rare vascular malformation characterized by fibro-adipose and venous tissue with diffuse muscle infiltration and extension along fascial planes, most often affecting the calf and forearm. Major clinical features include severe and persistent pain, phlebectasia, contractures, joint deformity as well as muscle atrophy. The skin is usually unremarkable.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Adolescent, Childhood
- Inheritance
- Not applicable
- Classified as
- Disease
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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