raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:357058

Autosomal recessive cutis laxa type 2A

Synonyms: ARCL2A

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

A rare, genetic, dermis elastic tissue disease characterized by redundant, overfolded skin of variable severity, ranging from wrinkly skin to cutis laxa associated with pre- and post-natal growth retardation, hypotonia, mild to moderate developmental delay, late closure of anterior fontanelle, and craniofacial dysmorphism (including microcephaly, hypertelorism, downslanting palpebral fissures, large, prominent nasal root with funnel nose, small, low-set ears, long philtrum, drooping facial skin). Additional manifestations may include seizures, intellectual disability, congenital hip dislocation, inguinal hernia, and cortical and cerebellar malformations. Pretibial pseudo-ecchymotic skin lesions have occasionally been associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal recessive cutis laxa type 2AARCL2A
frCutis laxa autosomique récessive type 2A= en
deCutis laxa, autosomal-rezessive, Typ 2A= en
esCutis laxa autosómica recesiva tipo 2A= en
itCutis laxa autosomica recessiva tipo 2A= en
nlAutosomaal recessieve cutis laxa type 2A= en
ptCutis laxa autossómica recessiva tipo 2A
plAutosomalna recesywna luźna skóra typu 2A= en
csAutozomálně recesivní cutis laxa, typ 2A= en
ukАутосомно-рецесивний cutis laxa, тип 2A= en
zh常染色体隐性皮肤松弛2A型= en
trOtozomal resesif kutis laksa tip 2A= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM219200BTNTvalidated
OMIM278250BTNTvalidated
ICD-10Q82.8NTBTattributedvalidated
ICD-11LD28.2NTBTindexvalidated
MONDO0018163Evalidated
MeSHC562632Evalidated
UMLSC0268355Evalidated
GARD1638Evalidated

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 (6):

Children (2):

4

Genes

0 direct · 4 via subtypes

Orphanet records no gene directly on this code.

Recorded by Orphanet on subtypes of this disorder:

GeneSubtypeAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ATP6V0A2ORPHA:2834Wrinkly skin syndromeDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:18481ENSG0000018534461171612q24.31ATPase H+ transporting V0 subunit a218157129[PMID]
ATP6V0A2ORPHA:357074Autosomal recessive cutis laxa type 2, classic typeDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:18481ENSG0000018534461171612q24.31ATPase H+ transporting V0 subunit a220301755[PMID]_19321599[PMID]_18157129[PMID]
ATP6V1AORPHA:357074Autosomal recessive cutis laxa type 2, classic typeDisease-causing germline mutation(s) inAssessedHGNC:851ENSG000001145736070273q13.31ATPase H+ transporting V1 subunit A28065471[PMID]
ATP6V1E1ORPHA:357074Autosomal recessive cutis laxa type 2, classic typeDisease-causing germline mutation(s) inAssessedHGNC:857ENSG0000013110010874622q11.21ATPase H+ transporting V1 subunit E128065471[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families26 casesWorldwideCase(s)Validated15657616[PMID]_17971833[PMID]_18716235[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidated15657616[PMID]_17971833[PMID]_18716235[PMID]_ORPHANET

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

53 annotations · validated 2020-06-23
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0025082Abnormal cutaneous elastic fiber morphology
HP:0003160Abnormal isoelectric focusing of serum transferrin
HP:0007392Excessive wrinkled skin
HP:0001263Global developmental delay
HP:0011003High myopia
HP:0001249Intellectual disability
HP:0001382Joint hypermobility
HP:0004474Persistent open anterior fontanelle
HP:0005328Progeroid facial appearance
Frequent (79-30%)
HP:0002438Cerebellar malformation
HP:0000270Delayed cranial suture closure
HP:0002376Developmental regression
HP:0002198Dilated fourth ventricle
HP:0000494Downslanted palpebral fissures
HP:0005445Enlarged posterior fossa
HP:0002384Focal impaired awareness seizure
HP:0002197Generalized-onset seizure
HP:0001252Hypotonia
HP:0000023Inguinal hernia
HP:0001511Intrauterine growth retardation
HP:0001302Pachygyria
HP:0001763Pes planus
HP:0008897Postnatal growth retardation
HP:0011451Primary microcephaly
HP:0000426Prominent nasal bridge
HP:0005272Prominent nasolabial fold
HP:0005484Secondary microcephaly
HP:0011344Severe global developmental delay
HP:0000486Strabismus
HP:0006891Thick cerebral cortex
HP:0100874Thick hair
HP:0000260Wide anterior fontanel
Occasional (29-5%)
HP:0001892Abnormal bleeding
HP:0002334Abnormality of the cerebellar vermis
HP:0001251Ataxia
HP:0002305Athetosis
HP:0000592Blue sclerae
HP:0001320Cerebellar vermis hypoplasia
HP:0001374Congenital hip dislocation
HP:0001305Dandy-Walker malformation
HP:0006989Dysplastic corpus callosum
HP:0001332Dystonia
HP:0002007Frontal bossing
HP:0002540Inability to walk
HP:0000343Long philtrum
HP:0001250Seizure
HP:0001350Slurred speech
HP:0001257Spasticity
Very rare (<4-1%)
HP:0000481Abnormal cornea morphology
HP:0000365Hearing impairment
HP:0002659Increased susceptibility to fractures
Excluded (0%)
HP:0007957Corneal opacity
HP:0000974Hyperextensible skin

Run the differential on the 9 obligate / very frequent terms

Annotation source: 28294978[PMID]_20301755[PMID]

7

Sources for this card