raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:3365

Trigonocephaly-broad thumbs syndrome

historical

Synonyms: Hunter-Rudd-Hoffmann syndrome

Type
Malformation syndrome
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Infancy, Neonatal
Status
historical

A rare syndromic craniosynostosis characterized by neonatal trigonocephaly with prominent metopic ridge/bregma, hypotelorism, shallow orbits, deviation of the digits, broad thumbs with duplication of the terminal phalanx and clinodactyly. Craniofacial dysmorphism may also include oxycephaly, facial asymmetry, epicanthic folds, ptosis, hooked nose with extended septum (the philtrum may be attached anteriorly on the septum), and a large mouth with a downturned upper lip. Nail and dermatoglyphic abnormalities have also been reported. There have been no further descriptions in the literature since 1976.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enTrigonocephaly-broad thumbs syndromeHunter-Rudd-Hoffmann syndrome
frSyndrome de trigonocéphalie-anomalies des extrémitésSyndrome de Hunter-Rudd-Hoffmann
deSyndrom der Trigonozephalie mit breiten DaumenHunter-Rudd-Hoffmann-Syndrom
esSíndrome de trigonocefalia-pulgares ensanchadosSíndrome de Hunter-Rudd-Hoffmann
itTrigonocefalia - pollici larghiSindrome di Hunter-Rudd-Hoffmann
nlTrigonocefalie - brede duimen-syndroomSyndroom van Hunter-Rudd-Hoffmann
ptSíndrome de trigonocefalia-polegares largosSíndrome Hunter-Rudd-Hoffmann
plTrigonocefalia - szerokie kciukiZespół Huntera, Rudda i Hoffmanna
csSyndrom zahrnující trigonocefalii a široké palce na rukouHunterův-Ruddův-Hoffmannův syndrom · Hunter-Rudd-Hoffmannův syndrom
ukСиндром тригоноцефалії - широких великих пальців рукСиндром Хантера-Радда-Гоффмана
zh三角头畸形-宽拇指综合征Hunter-Rudd-Hoffmann 综合征
trTrigonosefali-geniş başparmak sendromuHunter-Rudd-Hoffmann sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q87.0NTBTattributedvalidated
MONDO0018064Evalidated
UMLSC4304968Evalidated

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/families2 casesWorldwideCase(s)Validated1271432[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_1271432[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

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card