raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2497

Upper limb mesomelic dysplasia, type Fryns

Synonyms: Fryns-Hofkens-Fabry syndrome

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
active

A rare primary bone dysplasia characterized by isolated upper limb mesomelic dysplasia. Patients present with ulnar hypoplasia with severe radial bowing, but normal stature.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enUpper limb mesomelic dysplasia, type FrynsFryns-Hofkens-Fabry syndrome
frDysplasie mésomélique de l'avant bras type FrynsSyndrome de Fryns-Hofkens-Fabry
deDysplasie, mesomele, der oberen Extremität, Typ FrynsFryns-Hofkens-Fabry-Syndrom
esDisplasia mesomélica de las extremidades superiores tipo FrynsSíndrome de Fryns-Hofkens-Fabry
itDisplasia mesomelica dell'avanbraccio, tipo FrynsIpoplasia del gomito · Sindrome di Fryns-Hofkens-Fabry
nlMesomele dysplasie van bovenste ledematen, Fryns-typeSyndroom van Fryns-Hofkens-Fabry
ptDisplasia mesomélica dos membros superiores, tipo FrynsSíndrome Fryns-Hofkens-Fabry
plDysplazja mezomeliczna kończyn górnych typu FrynsaHipoplazja kości łokciowej · Zespół Frynsa, Hofkensa i Fabry'ego
csMezomelická dysplázie horních končetinHypoplázie ulny · Frynsův-Hofkensův-Fabryho syndrom · Fryns-Hofkens-Fabryho syndrom
ukМезомелічна дисплазія верхніх кінцівок, тип ФрінсаСиндром Фрінса-Хофкенса-Фабрі · Гіпоплазія ліктьової кістки
zh上肢肢中骨发育不良Fryns-Hofkens-Fabry综合征
trÜst ekstremite mezomelik displaziUlna hipoplazisi · Fryns-Hofkens-Fabry sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM191440Evalidated
ICD-10Q71.8NTBTattributedvalidated
ICD-11LD24.ANTBTindexvalidated
MONDO0008620Evalidated
MeSHC538069Evalidated
UMLSC5574958Evalidated
GARD2408Evalidated

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 (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 casesWorldwideCase(s)Validated3342548[PMID]_16283892[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_3342548[PMID]_16283892[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

3 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0003022Hypoplasia of the ulna
HP:0002986Radial bowing
HP:0009465Ulnar deviation of finger

Run the differential on the 3 obligate / very frequent terms

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Sources for this card