raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:950

Acrodysostosis

Synonyms: Acrodysostosis with or without multiple hormonal resistance · Acrodysplasia · Arkless-Graham syndrome · Maroteaux-Malamut syndrome

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

An acromelic dysplasia that is characterized by severe brachydactyly, peripheral dysostosis with facial dysostosis, nasal hypoplasia, and developmental delay.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAcrodysostosisAcrodysostosis with or without multiple hormonal resistance · Acrodysplasia · Arkless-Graham syndrome · Maroteaux-Malamut syndrome
frAcrodysostoseAcrodysplasie · Syndrome d'Arkless-Graham · Syndrome de Maroteaux-Malamut
deAkrodysostoseAkrodysostose mit oder ohne multiple Hormonresistenz · Akrodysplasie · Arkless-Graham-Syndrom · Maroteaux-Malamut-Syndrom
esAcrodisostosisSíndrome de Arkless-Graham · Síndrome de Maroteaux-Malamut · Acrodisostosis con o sin resistencia hormonal múltiple · Acrodisplasia
itAcrodisostosiAcrodisostosi con o senza resistenza multipla agli ormoni · Acrodisplasia · Sindrome di Arkless-Graham · Sindrome di Maroteaux-Malamut
nlAcrodysostoseAcrodysostose met of zonder meervoudige hormoonresistentie · Acrodysplasie · Syndroom van Arkless-Graham · Syndroom van Maroteaux-Malamut
ptAcrodisostoseAcrodisostose com ou sem resistência hormonal múltipla · Acrodisplasia · Síndrome Arkless-Graham · Síndrome Maroteaux-Malamut
plDyzostoza kończynowaAkrodyzostoza · Zespół Arklessa i Grahama · Zespół Maroteaux i Malamuta
csAkrodysostózaAkrodysplázie · Arklessův-Grahamův syndrom · Maroteauxův-Malamutův syndrom · Arkless-Grahamův syndrom · Maroteaux-Malamutův syndrom
ukАкродизостозАкродизостоз з множинною гормональною резистентністю або без неї · Акродисплазія · Синдром Арклесса-Грема · Синдром Марото-Маламута
zh肢端骨发育不全Maroteaux-Malamut综合征
trAkrodisostozAkrodisplazi · Arkless-Graham sendromu · Maroteaux-Malamut sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM101800BTNTnot yet validated
OMIM614613BTNTnot yet validated
ICD-10Q75.4NTBTattributedvalidated
ICD-11LD2F.16NTBTindexvalidated
MONDO0019797Evalidated
MeSHC538179Evalidated
UMLSC0220659Evalidated
GARD5724Evalidated
MedDRA10079856Evalidated

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 (4):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PRKAR1ADisease-causing germline mutation(s) (gain of function) inAssessedHGNC:9388ENSG0000010894618883017q24.2protein kinase cAMP-dependent type I regulatory subunit alpha21651393[PMID]_22464250[PMID]_22464252[PMID]
PDE4DDisease-causing germline mutation(s) inAssessedHGNC:8783ENSG000001134486001295q11.2-q12.1phosphodiesterase 4D22464250[PMID]_22464252[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET
Cases/families80 casesWorldwideCase(s)Validated[EXPERT]

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 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003312Abnormal form of the vertebral bodies
HP:0005916Abnormal metacarpal morphology
HP:0001597Abnormal nail morphology
HP:0005616Accelerated skeletal maturation
HP:0001156Brachydactyly
HP:0010579Cone-shaped epiphysis
HP:0005280Depressed nasal bridge
HP:0000457Depressed nasal ridge
HP:0010655Epiphyseal stippling
HP:0000327Hypoplasia of the maxilla
HP:0001249Intellectual disability
HP:0011800Midface retrusion
HP:0000194Open mouth
HP:0010049Short metacarpal
HP:0010743Short metatarsal
HP:0003196Short nose
HP:0004322Short stature
HP:0001831Short toe
HP:0000431Wide nasal bridge
Frequent (79-30%)
HP:0000940Abnormal diaphysis morphology
HP:0000944Abnormal metaphysis morphology
HP:0002818Abnormal morphology of the radius
HP:0040071Abnormal morphology of ulna
HP:0000055Abnormality of female external genitalia
HP:0002823Abnormality of femur morphology
HP:0010978Abnormality of immune system physiology
HP:0000463Anteverted nares
HP:0006487Bowing of the long bones
HP:0000248Brachycephaly
HP:0006059Cone-shaped metacarpal epiphyses
HP:0002673Coxa valga
HP:0000028Cryptorchidism
HP:0000684Delayed eruption of teeth
HP:0002007Frontal bossing
HP:0002970Genu varum
HP:0000365Hearing impairment
HP:0000316Hypertelorism
HP:0002984Hypoplasia of the radius
HP:0003022Hypoplasia of the ulna
HP:0001373Joint dislocation
HP:0000303Mandibular prognathia
HP:0002983Micromelia
HP:0009830Peripheral neuropathy
HP:0011220Prominent forehead
HP:0003416Spinal canal stenosis
HP:0000506Telecanthus
Occasional (29-5%)
HP:0000286Epicanthus
HP:0012368Flat face
HP:0000135Hypogonadism
HP:0000858Irregular menstruation
HP:0000995Melanocytic nevus
HP:0010807Open bite
HP:0002650Scoliosis

Run the differential on the 12 obligate / very frequent terms

7

Sources for this card