raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:477814

Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy
Status
active

Progressive microcephaly-seizures-cortical blindness-developmental delay syndrome is a rare, genetic, neuro-ophthalmological syndrome characterized by post-natal, progressive microcephaly and early-onset seizures, associated with delayed global development, bilateral cortical visual impairment and moderate to severe intellectual disability. Additional manifestations include short stature, generalized hypotonia and pulmonary complications, such as recurrent respiratory infections and bronchiectasis. Auditory and metabolic screenings are normal.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enProgressive microcephaly-seizures-cortical blindness-developmental delay syndrome
frSyndrome de microcéphalie progressive-épilepsie-cécité corticale-retard de développement
deProgressive Mikrozephalie-Krämpfe-Kortikale Blindheit-Entwicklungsverzögerung-Syndrom
esSíndrome de microcefalia progresiva-crisis-ceguera cortical-retraso del desarrollo
itSindrome da microcefalia progressiva - crisi epilettiche - cecità corticale - ritardo dello sviluppo
nlProgressieve microcefalie - insulten - corticale blindheid - ontwikkelingsachterstand-syndroom
ptSíndrome de microcefalia progressiva-convulsões-cegueira cortical-perturbação do desenvolvimento
plZespół postępującego małogłowia, napadów padaczkowych, ślepoty korowej i opóźnienia w rozwoju
csSyndrom zahrnující progresivní mikrocefalii, křeče, korovou slepotu a vývojové opoždění
ukСиндром прогресуючої мікроцефалії-судом-коркової сліпоти-затримки розвитку
zh进行性小头畸形-癫痫-皮质盲-发育迟缓综合征
trİlerleyici mikrosefali-nöbetler-kortikal körlük-gelişme geriliği sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM616632Evalidated
ICD-10Q02NTBTattributedvalidated
MONDO0014714Evalidated
UMLSC5567650Evalidated

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 (5):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
DIAPH1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:2876ENSG000001315046021215q31.3diaphanous related formin 124781755[PMID]_2643574[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families9 casesWorldwideCase(s)Validated24781755[PMID]_26463574[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_24781755[PMID]_26463574[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

22 annotations · validated 2024-10-09
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0100704Cerebral visual impairment
HP:0001263Global developmental delay
HP:0002187Intellectual disability, profound
HP:0000253Progressive microcephaly
HP:0001250Seizure
Frequent (79-30%)
HP:0004325Decreased body weight
HP:0002719Recurrent infections
HP:0004322Short stature
Occasional (29-5%)
HP:0012191B-cell lymphoma
HP:0012444Brain atrophy
HP:0002110Bronchiectasis
HP:0005387Combined immunodeficiency
HP:0032218Decreased proportion of CD4-positive T cells
HP:0000823Delayed puberty
HP:0001531Failure to thrive in infancy
HP:0034311Hypoplastic optic chiasm
HP:0001252Hypotonia
HP:0002665Lymphoma
HP:0011330Metopic synostosis
HP:0000648Optic atrophy
HP:0003202Skeletal muscle atrophy
HP:0033725Thin corpus callosum

Run the differential on the 5 obligate / very frequent terms

Annotation source: 36212620[PMID]_33662367[PMID]_26463574[PMID]

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Sources for this card