raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:1968

Flat face-microstomia-ear anomaly syndrome

historical

Synonyms: Blepharophimosis-telecanthus-microstomia syndrome · Simosa craniofacial syndrome · Simosa-Penchaszadeh-Bustos syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Unknown
Age of onset
Neonatal
Status
historical

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.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFlat face-microstomia-ear anomaly syndromeBlepharophimosis-telecanthus-microstomia syndrome · Simosa craniofacial syndrome · Simosa-Penchaszadeh-Bustos syndrome
frSyndrome de face plate-microstomie-anomalie de l'oreilleSyndrome craniofacial de Simosa · Syndrome de blépharophimosis-télécanthus-microstomie
deFlaches Gesicht-Mikrostomie-Ohranomalie-SyndromBlepharophimose-Telekanthus-Mikrostomie-Syndrom · Kraniofaziales Syndrom Simosa · Simosa-Penchaszadeh-Bustos-Syndrom
esSíndrome de cara plana-microstomía-anomalías de las orejasSíndrome craneofacial de Simosa · Síndrome de Simosa-Penchaszadeh-Bustos · Síndrome de blefarofimosis-telecanto-microstomía
itSindrome da viso appiattito, microstomia ed anomalie dell'orecchioBlefarofimosi - telecanto - microstomia · Sindrome di Simosa
nlPlat gelaat - microstomie - ooranomalie-syndroomBlefarofimose - telecanthus - microstomie-syndroom · Craniofaciaal syndroom van Simosa · Syndroom van Simosa-Penchaszadeh-Bustos
ptSíndrome de face plana-microstomia-anomalia do pavilhão auricularBlefarofimose-telecanto-microstomia · Síndrome Simosa-Penchaszadeh-Bustos
plPłaska twarz - mikrostomia - wady uszuZespół Simosa'a, Penchaszadeha i Bustosa · Zwężenie szpary powiekowej - telekantus - mikrostomia
csSyndrom zahrnující plochý obličej, mikrostomii a anomálie uchaSyndrom zahrnující blefarofimózu, telekantus a mikrostomii · Simosův-Penchaszadehův-Bustosové syndrom · Simosa-Penchaszadeh-Bustosové syndrom
ukСиндром плаского обличчя-мікростомії-вушної аномаліїСиндром блефарофімозу-телекантрозу-мікростомії · Черепно-лицьовий синдром Симоса · Синдром Сімоса-Пенчасаде-Бустоса
zh扁平面-小口畸形-耳部异常综合征睑裂狭小-内眦距过宽-小口畸形综合征
trDüz yüz-mikrostomi-kulak anomalisi sendromuSimosa kraniyofasiyal sendrom · Simosa-Penchaszadeh-Bustos sendromu · Blefarofimozis-telekantus-mikrostomi sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM182150Evalidated
ICD-10Q87.0NTBTattributedvalidated
MONDO0008421Evalidated
MeSHC537339Evalidated
UMLSC1866962Evalidated
GARD4873Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated2929657[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_2929657[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

32 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0009912Abnormal tragus morphology
HP:0009738Abnormality of the antihelix
HP:0009896Abnormality of the antitragus
HP:0009906Aplasia/Hypoplasia of the earlobes
HP:0000581Blepharophimosis
HP:0000337Broad forehead
HP:0010751Chin dimple
HP:0002714Downturned corners of mouth
HP:0012368Flat face
HP:0000348High forehead
HP:0002705High, narrow palate
HP:0002553Highly arched eyebrow
HP:0001611Hypernasal speech
HP:0010669Hypoplasia of the zygomatic bone
HP:0000276Long face
HP:0003189Long nose
HP:0000343Long philtrum
HP:0000400Macrotia
HP:0000272Malar flattening
HP:0000347Micrognathia
HP:0000160Narrow mouth
HP:0045075Sparse eyebrow
HP:0000506Telecanthus
HP:0000430Underdeveloped nasal alae
HP:0000431Wide nasal bridge
Frequent (79-30%)
HP:0000028Cryptorchidism
HP:0000023Inguinal hernia
HP:0000358Posteriorly rotated ears
HP:0002650Scoliosis
HP:0000046Small scrotum
Occasional (29-5%)
HP:0011830Abnormal oral mucosa morphology
HP:0100490Camptodactyly of finger
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Sources for this card