raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:444941

Caudal regression-sirenomelia spectrum

Type
Clinical group
Group
Group of disorders
Status
active

A group of rare genetic developmental defect during embryogenesis disorders characterized by varying degrees of caudal abdomen, pelvic, renal, anorectal, urogenital and/or lumbosacral spine malformations, with or without lower limb fusion. Phenotype is highly variable ranging from minor forms with isolated coccygeal agenesis to severe forms presenting with a single rudimentary limb. Central nervous system anomalies have also been reported.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCaudal regression-sirenomelia spectrum
frSpectre régression caudale-sirénomélie
deKaudale Regression-Sirenomelie-Spektrum
esEspectro de regresión caudal-sirenomelia
itSpettro regressione caudale-sirenomelia
nlCaudale regressie - sirenomelie-spectrum
ptEspectro clínico de regressão caudal-sirenomelia
plSpektrum regresji kaudalnej i syrenomelii
csSpektrum zahrnující kaudální regresi a sirenomelii
ukСпектр каудальної регресії-сиреномелії
zh尾侧蜕化-并肢畸形谱系
trKaudal regresyon-sirenomeli spektrumu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
MONDO0018639Evalidated
MONDO18639Evalidated
UMLSC5681198Evalidated

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 (4):

Children (3):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

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

7

Sources for this card