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Start free with EleplanFlat face-microstomia-ear anomaly syndrome
ORPHA:1968Malformation syndrome
Also called Blepharophimosis-telecanthus-microstomia syndrome · Simosa craniofacial syndrome · Simosa-Penchaszadeh-Bustos syndrome
What it is
Flat face-microstomia-ear anomaly syndrome is a rare, genetic, multiple congenital anomalies/dysmorphic syndrome characterized by dysmorphic facial features, including high forehead, elongated and flattened midface, arched and sparse eyebrows, short palpebral fissures, telecanthus, long nose with hypoplastic nostrils, long philtrum, high and narrow palate and microstomia with downturned corners. Ears are characteristically malformed, large, low-set and posteriorly rotated and nasal speech is associated. There have been no further descriptions in the literature since 1994.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Neonatal
- Inheritance
- Unknown
- 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
Very common80–99%
25- Abnormality of the antihelix
- Abnormality of the antitragus
- Abnormal tragus morphology
- Aplasia/Hypoplasia of the earlobes
- Blepharophimosis
- Broad forehead
- Chin dimple
- Downturned corners of mouth
- Flat face
- High forehead
- Highly arched eyebrow
- High, narrow palate
- Hypernasal speech
- Hypoplasia of the zygomatic bone
- Long face
- Long nose
- Long philtrum
- Macrotia
- Malar flattening
- Micrognathia
- Narrow mouth
- Sparse eyebrow
- Telecanthus
- Underdeveloped nasal alae
- Wide nasal bridge
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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