raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:3294

Extensor tendons of finger anomalies

historical

Synonyms: Hapnes-Boman-Skeie syndrome

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
historical

Extensor tendons of finger anomalies is a rare, genetic, congenital limb malformation characterized by bilateral anomalous attachment of the extensor tendons of the four ulnar fingers. Attachment occurrs to the medial and lateral aspects of the middle phalanges leading to constant flexion in the midphalangeal joints and inability to extend the fingers. There have been no further descriptions in the literature since 1980.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enExtensor tendons of finger anomaliesHapnes-Boman-Skeie syndrome
frAnomalie des tendons extenseurs des doigtsSyndrome de Hapnes-Boman-Skeie
deAnomalien der FingerstrecksehnenHapnes-Boman-Skeie-Syndrom
esAnomalía de los tendones extensores de los dedos de las manosSíndrome de Hapnes-Boman-Skeie
itAnomalia dei tendini estensori delle ditaSindrome di Hapnes-Boman-Skeie
nlAnomalieën van extensorpezen van vingerAnomalieën van strekpezen van vinger · Syndroom van Hapnes-Boman-Skeie
ptAnomalias dos tendões extensores dos dedosSíndrome Hapnes-Boman-Skeie
plWydłużone ścięgna palcówZespół Hapnesa, Bomana i Skeie
csAnomálie extenzorů šlach prstůHapnesův-Bomanův-Skeieův syndrom · Hapnes-Boman-Skeieův syndrom
ukАномалії сухожилля розгиначів пальцівСиндром Гапнеса-Бомана-Скейє
zh指伸肌腱异常Hapnes-Boman-Skeie综合征
trParmak anomalilerinin ekstansör tendonlarıHapnes-Boman-Skeie sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM187390Evalidated
ICD-10Q74.0NTBTattributedvalidated
MONDO0008540Evalidated
MeSHC536960Evalidated
UMLSC2931376Evalidated
GARD2597Evalidated

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)Validated7363507[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_7363507[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

6 annotations · validated 2017-09-14
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0100490Camptodactyly of finger
HP:0001012Multiple lipomas
HP:0000991Xanthomatosis
Frequent (79-30%)
HP:0001376Limitation of joint mobility
HP:0000939Osteoporosis
HP:0003202Skeletal muscle atrophy
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Sources for this card