raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:438134

PCNA-related progressive neurodegenerative photosensitivity syndrome

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare developmental defect during embryogenesis caused by homozygous mutations in the <i>PCNA</i> gene and characterized by neurodegeneration, postnatal growth retardation, prelingual sensorineural hearing loss, premature aging, ocular and cutaneous telangiectasia, learning difficulties, photophobia, and photosensitivity with evidence of predisposition to sun-induced malignancy. Progressive neurologic deterioration leads to gait disturbances, muscle weakness, speech and swallowing difficulties and progressive cognitive decline.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPCNA-related progressive neurodegenerative photosensitivity syndrome
frSyndrome neurodégénératif progressif avec photosensibilité associé à PCNA
dePCNA-assoziiertes progressives neurodegeneratives photosensitives-Syndrom
esSíndrome de neurodegeneración progresiva con fotosensibilidad asociado a PCNA
itSindrome neurodegenerativa progressiva con fotosensibilità correlata a PCNA
nlPCNA-gerelateerde progressieve neurodegeneratieve fotosensitiviteit-syndroom
ptSíndrome de fotossenssibilidade neurodegenerativa progressiva PCNA-relacionada
plZespół postępującej neurozwyrodnieniowej wrażliwości na światło zależnej od PCNA
csSyndrom PCNA-vázané progresivní neurodegenerativní fotosensitivity
ukПрогресуючий нейродегенеративний синдром фоточутливості, повязаний з PCNA
zhPCNA相关性进行性神经退行性光敏综合征
trPCNA-ilişkili ilerleyici nörodejeneratif fotosensitivite sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615919Evalidated
ICD-10G11.3NTBTattributedvalidated
MONDO0014399Evalidated
UMLSC4014676Evalidated

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 (9):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PCNADisease-causing germline mutation(s) inAssessedHGNC:8729ENSG0000013264617674020p12.3proliferating cell nuclear antigen24911150[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 casesWorldwideCase(s)Validated24911150[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_24911150[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

16 annotations · validated 2019-12-05
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000992Cutaneous photosensitivity
HP:0002066Gait ataxia
HP:0001263Global developmental delay
HP:0000365Hearing impairment
HP:0002180Neurodegeneration
HP:0000613Photophobia
HP:0100585Telangiectasia of the skin
Frequent (79-30%)
HP:0031087Absent pubertal growth spurt
HP:0001256Intellectual disability, mild
HP:0007763Retinal telangiectasia
HP:0004322Short stature
Occasional (29-5%)
HP:0001272Cerebellar atrophy
HP:0000776Congenital diaphragmatic hernia
HP:0010864Intellectual disability, severe
HP:0000252Microcephaly
HP:0002664Neoplasm

Run the differential on the 7 obligate / very frequent terms

Annotation source: 24911150[PMID]_26255937[PMID]

7

Sources for this card