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Start free with EleplanZechi-Ceide syndrome
ORPHA:217017Malformation syndrome
Also called Occipital atretic cephalocele-unusual facies-large feet syndrome
What it is
A rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by occipital atretic cephalocele associated with a specific facial dysmorphism (consisting of prominent forehead, narrow palpebral fissures, midface deficiency, narrow, malformed ears, broad nose and nasal root, grooved nasal tip and columella, laterally angulated, hypoplastic nares, short philtrum, thin upper lip, clift lip/palate, severe oligodontia, prominent chin) and large feet with sandal gap. Intellectual disability, developmental delay and hypoplastic finger and toenails have also been reported.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Infancy, Neonatal
- Inheritance
- Autosomal recessive
- 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.
Signs and symptoms
Common30–79%
26- Abnormal helix morphology
- Abnormality of earlobe
- Abnormality of the posterior cranial fossa
- Atretic occipital cephalocele
- Cerebellar vermis hypoplasia
- Cleft lip
- Cleft palate
- Conductive hearing impairment
- Downturned corners of mouth
- Global developmental delay
- Long foot
- Mandibular prognathia
- Midface retrusion
- Narrow palpebral fissure
- Oligodontia
- Prominent forehead
- Sandal gap
- Short distal phalanx of finger
- Short metatarsal
- Short palpebral fissure
- Short philtrum
- Small nail
- Stenosis of the external auditory canal
- Thin vermilion border
- Wide nasal bridge
- Wide nose
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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