raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2976

Pseudoleprechaunism syndrome, Patterson type

historical

Synonyms: Patterson pseudoleprechaunism syndrome · Patterson syndrome

Type
Malformation syndrome
Group
Disorder
Age of onset
Antenatal, Neonatal
Status
historical

Pseudoleprechaunism syndrome, Patterson type is a rare, genetic, adrenal disorder characterized by congenital bronzed hyperpigmentation, cutis laxa of the hands and feet, body disproportion (comprising large hands, feet, nose and ears), hirsutism and severe intellectual disability. Patients additionally present hyperadrenocorticism, cushingoid features, premature adrenarche and diabetes mellitus, as well as skeletal deformities (not present at birth and which progress with age). There have been no further descriptions in the literature since 1981.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPseudoleprechaunism syndrome, Patterson typePatterson pseudoleprechaunism syndrome · Patterson syndrome
frPseudolepréchaunisme de Patterson
dePseudo-Leprechaunismus-Syndrom Typ PattersonPatterson Pseudo-Leprechaunismus-Syndrom · Patterson-Syndrom
esSíndrome de pseudoleprechaunismo tipo PattersonSíndrome de Patterson · Síndrome de pseudo leprechaunismo de Patterson
itPseudoleprecaunismo, tipo Patterson
nlPseudoleprechaunismesyndroom, Patterson-typePseudoleprechaunismesyndroom van Patterson · Syndroom van Patterson
ptSíndrome de pseudo-leprechaunismo, tipo PattersonSíndrome de peudo-leprechaunismo de Patterson
plZespół pseudoleprechaunizmu typu Pattersona= en
csPseudoleprechaunismus, Pattersonův typ= en
ukСиндром псевдолепреконізму, тип ПаттерсонаСиндром псевдолепреконізму Паттерсона · Синдром Паттерсона
zh假性矮妖精貌综合征,Patterson型Patterson假性矮妖精貌综合征
trPsödoleprekaunizm sendromu, Patterson tipiPatterson sendromu · Patterson psödoleprekonizm sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM169170Evalidated
ICD-10E34.8NTBTattributedvalidated
ICD-11LD90NTBTattributedvalidated
MONDO0008211Evalidated
MeSHC536310Evalidated
UMLSC1868546Evalidated
GARD4259Evalidated

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 (2):

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)Validated7277424 [PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_7277424 [PMID][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

29 annotations · validated 2017-01-23
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:3000077Abnormal mandible condylar process morphology
HP:0012767Abnormal placental size
HP:0430005Abnormality of ethmoid bone
HP:0006505Abnormality of limb epiphysis morphology
HP:0003310Abnormality of the odontoid process
HP:0002069Bilateral tonic-clonic seizure
HP:0000015Bladder diverticulum
HP:0008788Delayed pubic bone ossification
HP:0002750Delayed skeletal maturation
HP:0000819Diabetes mellitus
HP:0003180Flat acetabular roof
HP:0007574Generalized bronze hyperpigmentation
HP:0002857Genu valgum
HP:0001007Hirsutism
HP:0430028Hyperplasia of the maxilla
HP:0010864Intellectual disability, severe
HP:0001386Joint swelling
HP:0002751Kyphoscoliosis
HP:0001176Large hands
HP:0001833Long foot
HP:0000400Macrotia
HP:0004979Metaphyseal sclerosis
HP:0007517Palmoplantar cutis laxa
HP:0000448Prominent nose
HP:0002684Thickened calvaria
Frequent (79-30%)
HP:0010819Atonic seizure
HP:0030348Increased circulating androgen concentration
HP:0012412Premature adrenarche
Excluded (0%)
HP:0001511Intrauterine growth retardation

Annotation source: 7277424[PMID]_14484402[PMID]

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Sources for this card