raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2522

Microcephaly-cervical spine fusion anomalies syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Antenatal, Neonatal
Status
active

Microcephaly-cervical spine fusion anomalies syndrome is characterized by microcephaly, facial dysmorphism (beaked nose, low-set ears, downslanting palpebral fissures, micrognathia), mild intellectual deficit, short stature, and cervical spine fusion anomalies producing spinal cord compression. It has been described in two brothers born to consanguineous parents. Transmission is likely to be autosomal recessive.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMicrocephaly-cervical spine fusion anomalies syndrome
frSyndrome de microcéphalie-fusions des vertèbres cervicales
deSyndrom der Mikrozephalie mit Fusionsanomalien der Halswirbelsäule
esSíndrome de microcefalia-anomalías de fusión de las vértebras cervicales
itMicrocefalia - fusione delle vertebre cervicali
nlMicrocefalie - fusie van cervicale wervelkolom-syndroom
ptSíndrome de microcefalia-fusão das vértebras cervicais
plMałogłowie - anomalie szyjnego odcinka kręgosłupa
csSyndrom zahrnující mikrocefalii a fúzi krční páteře
ukСиндром мікроцефалії та аномалії зрощення шийного відділу хребта
zh小头畸形-颈椎融合畸形综合征
trMikrosefali-servikal omurga füzyon anomalileri sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM251250Evalidated
ICD-10Q87.8NTBTattributedvalidated
ICD-11LD20.2NTBTindexvalidated
MONDO0009621Evalidated
MeSHC537325Evalidated
UMLSC0796066Evalidated
GARD3610Evalidated

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

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (3):

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)Validated5033742[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_5033742[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

26 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000772Abnormal rib morphology
HP:0004312Abnormality of reticulocytes
HP:0000444Convex nasal ridge
HP:0002949Fused cervical vertebrae
HP:0003307Hyperlordosis
HP:0001256Intellectual disability, mild
HP:0002808Kyphosis
HP:0000369Low-set ears
HP:0010620Malar prominence
HP:0000252Microcephaly
HP:0000347Micrognathia
HP:0012371Midface prominence
HP:0000767Pectus excavatum
HP:0000520Proptosis
HP:0004322Short stature
HP:0000340Sloping forehead
HP:0002176Spinal cord compression
Frequent (79-30%)
HP:0006482Abnormal dental morphology
HP:0002167Abnormality of speech or vocalization
HP:0000889Abnormality of the clavicle
HP:0003272Abnormality of the hip bone
HP:0000069Abnormality of the ureter
HP:0001347Hyperreflexia
HP:0000047Hypospadias
HP:0000508Ptosis
HP:0000470Short neck

Run the differential on the 12 obligate / very frequent terms

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Sources for this card