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Start free with EleplanPulmonary arteriovenous malformation
ORPHA:2038Morphological anomaly
Also called PAVM
What it is
An aberrant communication between one or more pulmonary arteries and one or more pulmonary veins leading to an anatomic intrapulmonary right-to-left shunt.
Key facts
- Prevalence
- 1-9 / 100 000 (annual incidence)
- Age of onset
- Infancy
- Inheritance
- Multigenic/multifactorial, Unknown
- Classified as
- Morphological anomaly
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.
Signs and symptoms
Sometimes5–29%
16and 8 more in this range
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
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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