raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:3387

Isolated anterior cervical hypertrichosis

Synonyms: Hairy throat syndrome · Tsukahara-Kajii syndrome

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant, Autosomal recessive
Age of onset
Childhood
Status
active

A rare form of localised hypertrichosis characterized by hair growth near the laryngeal prominence during childhood.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIsolated anterior cervical hypertrichosisHairy throat syndrome · Tsukahara-Kajii syndrome
frHypertrichose cervicale antérieure isoléeSyndrome de Tsukahara-Kajii · Syndrome de la gorge poilue
deHypertrichose, ventrale zervikale, isolierteHairy-throat-Syndrom
esHipertricosis cervical anterior aislada
itIpertricosi cervicale anteriore isolataSindrome da irsutismo anteriore del collo · Sindrome di Tsukahara-Kajii
nlGeïsoleerde anterieure cervicale hypertrichoseHairy throat-syndroom · Syndroom van Tsukahara-Kajii
ptHipertricose cervical anterior isoladaSíndrome Tsukahara-Kajii
plIzolowana przednia hipertrichoza szyiZespół Tsukahara i Kajii · Zespół owłosionego gardła
csIzolovaná přední krční hypertrichózaSyndrom vlasatého hrdla · Tsukaharův-Kajiiho syndrom · Tsukahara-Kajiiho syndrom
ukІзольований гіпертрихоз передньої поверхні шиїСиндром волохатого горла · Синдром Цукахара-Каджі
zh孤立型颈前多毛Tsukahara-Kajii综合征
trİzole anterior servikal hipertrikozTüylü gırtlak sendromu · Tsukahara-Kajii sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM600457Evalidated
ICD-10L68.2NTBTattributedvalidated
ICD-11ED71NTBTattributedvalidated
MONDO0010887Evalidated
MeSHC538390Evalidated
UMLSC1838123Evalidated
GARD8438Evalidated

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/families20 casesWorldwideCase(s)ValidatedORPHANET
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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