Caring for someone with this diagnosis? Eleplan keeps diagnoses, medications, documents and every specialist in one plan.
Start free with EleplanIntrauterine growth retardation-micrognathia-short stature-facial dysmorphism-rhizomelic shortening syndrome
ORPHA:659702Malformation syndrome
Also called ARCN1-related syndrome
What it is
A rare multiple congenital anomalies/dysmorphic syndrome characterized by intrauterine growth restriction, microcephaly, short stature, rhizomelic shortening and facial dysmorphism (including prominent forehead, downslanted palpebral fissures, bulbous nasal tip, large or prominent ears and notably severe micrognathia). Developmental delay is commonly reported, intellectual disability may also be present. Additional clinical features may include genitourinary malformations in males, transient liver dysfunction, glycosylation abnormalities, giant cell hepatitis, hepatoblastoma, and cataracts. Severity of the disease varies from mild to very severe which may lead to intrauterine death or stillbirth in some cases.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Antenatal, Neonatal
- Inheritance
- Autosomal dominant
- Classified as
- Malformation syndrome
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.
Gene
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.
Powered by Eleplan
A rare diagnosis is just the start. Eleplan keeps the whole care plan in one place.
Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, so you are not retelling the same story to every new specialist. With Ellie, your AI care assistant, on top of it. Free to start.