raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:3361

Trichodysplasia-xeroderma syndrome

historical

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
historical

Trichodysplasia-xeroderma syndrome is an extremely rare, syndromic hair shaft anomaly characterized by sparse, coarse, brittle, excessively dry and slow-growing scalp hair, sparse axillary and pubic hair, sparse or absent eyelashes and eyebrows and dry skin. Hair shaft analysis shows pili torti, longitudinal splitting, grooves, peeling and scaling. There have been no further descriptions in the literature since 1987.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enTrichodysplasia-xeroderma syndrome
frSyndrome de trichodysplasie-xérodermie
deTrichodysplasie-Xerodermie-Syndrom
esSíndrome de tricodisplasia-xerodermia
itSindrome tricodisplasia - xeroderma
nlTrichodysplasie - xerodermie-syndroom
ptSíndrome de tricodisplasia-xerodermia
plTrichodysplazja - kseroderma
csSyndrom zahrnující trichodysplázii a xerodermii
ukСиндром триходисплазії-ксеродермії
zh毛发发育不良-干皮病综合征
trTrikodisplazi-kseroderma sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM190360Evalidated
ICD-10L67.8NTBTattributedvalidated
ICD-11EC21.0NTBTattributedvalidated
MONDO0008598Evalidated
UMLSC4707844Evalidated
GARD5261Evalidated

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/families1 familiesWorldwideFamily(ies)Validated3608221[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_3608221[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

10 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002299Brittle hair
HP:0002208Coarse hair
HP:0000958Dry skin
HP:0003777Pili torti
HP:0045075Sparse eyebrow
HP:0002209Sparse scalp hair
HP:0002552Trichodysplasia
HP:0009886Trichorrhexis nodosa
Frequent (79-30%)
HP:0001596Alopecia
HP:0002231Sparse body hair
7

Sources for this card