raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:2926

Digital extensor muscle aplasia-polyneuropathy

historical

Synonyms: Congenital aplasia of the extensor muscles of the fingers and thumb associated with generalized polyneuropathy · Hamanishi-Ueba-Tsuji syndrome · Polyneuropathy-hand defect syndrome

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
historical

Digital extensor muscle aplasia-polyneuropathy is a rare, hereditary motor and sensory neuropathy characterized by flexion deformities of the thumb and fingers, sensory deficit in the hand and polyneuropathic electrophysiologic findings in the limbs. Operation on the hands reveals extensor muscles and their tendons to be absent or hypoplastic. There have been no further descriptions in the literature since 1986.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enDigital extensor muscle aplasia-polyneuropathyCongenital aplasia of the extensor muscles of the fingers and thumb associated with generalized polyneuropathy · Hamanishi-Ueba-Tsuji syndrome · Polyneuropathy-hand defect syndrome
frAplasie des muscles extenseurs des doigts et pouce-polyneuropathieSyndrome de Hamanishi-Ueba-Tsuji · Syndrome de polyneuropathie-camptodactylie
deAplasie der Fingerstrecker mit PolyneuropathieHamanishi-Ueba-Tsuji-Syndrom · Kongenitale Aplasie der Streckmuskeln von Finger und Daumen mit assoziierter generalisierter Polyneuropathie · Polyneuropathie-Handfehlbildung-Syndrom
esAplasia de los músculos extensores de los dedos-polineuropatíaAplasia congénita de los músculos extensores de los dedos asociada a polineuropatía generalizada · Síndrome de Hamanishi-Ueba-Tsuji · Síndrome de polineuropatía-defecto de la mano
itAplasia dei muscoli estensori delle dita e polineuropatiaSindrome di Hamanishi-Ueba-Tsuji
nlAplasie van vingerextensoren - polyneuropathieCongenitale aplasie van strekspieren van vingers en duim geassocieerd met gegeneraliseerde polyneuropathie · Polyneuropathie - handdefect-syndroom · Syndroom van Hamanishi-Ueba-Tsuji
ptAplasia do músculo extensor digital-polineuropatiaPolineuropatia-anomalias das mãos · Síndrome Hamanishi-Ueba-Tsuji
plAplazja mięśni prostowników palców - polineuropatiaZespół Hamanishi, Ueba i Tsuji
csSyndrom zahrnující polyneuropatii a defekt rukyHamanishiové-Uebaův-Tsujiho syndrom · Hamanishi-Ueba-Tsujiho syndrom
ukАплазія мязів-розгиначів пальців кисті з полінейропатієюВроджена аплазія мязів-розгиначів пальців кисті та великого пальця, повязана з генералізованою полінейропатією · Синдром Хаманіші-Уеба-Цудзі · Синдром полінейропатії - дефекту кисті
zh指伸肌发育不良-多发性神经病多发性神经病-手部缺陷综合征
trDijital ekstansör kas aplazisi-polinöropatiJeneralize polinöropati ile ilişkili parmakların ve başparmağın ekstansör kaslarının Doğumsal aplazisi · Hamanishi-Ueba-Tsuji sendromu · Polinöropati-el defekti sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM207740Evalidated
ICD-10Q87.8NTBTattributedvalidated
MONDO0008809Evalidated
MeSHC535624Evalidated
UMLSC2930955Evalidated
GARD2589Evalidated

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/families3 casesWorldwideCase(s)Validated3459358[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_3459358[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

9 annotations · validated 2017-09-11
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0040129Abnormal nerve conduction velocity
HP:0001460Aplasia/Hypoplasia involving the skeletal musculature
HP:0100490Camptodactyly of finger
HP:0007328Impaired pain sensation
HP:0003560Muscular dystrophy
HP:0003202Skeletal muscle atrophy
Frequent (79-30%)
HP:0004370Abnormality of temperature regulation
HP:0002046Heat intolerance
HP:0000966Hypohidrosis
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Sources for this card