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Start free with EleplanIsolated absence of upper arm and forearm with hand present
ORPHA:294975Morphological anomaly
Also called Isolated congenital humero-radio-ulnar intercalary transverse meromelia
What it is
A rare congenital limb malformation characterized by absence or marked shortening of the proximal to mid portion of an upper limb, while the hand is normal or nearly normal. The condition may be unilateral or bilateral, and occur sporadically or as part of a malformation syndrome.
Key facts
- Prevalence
- 1-9 / 1 000 000 (at birth)
- Age of onset
- Infancy, Neonatal
- 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
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
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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