raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:90791

Congenital adrenal hyperplasia due to 3-beta-hydroxysteroid dehydrogenase deficiency

Synonyms: CAH due to 3-beta-hydroxysteroid dehydrogenase deficiency

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare form of congenital adrenal hyperplasia (CAH) due to 3-beta-hydroxysteroid dehydrogenase (HSD3B2) deficiency and characterized by salt-wasting and non-salt wasting CAH with a wide variety of symptoms, including glucocorticoid and mineralocorticoid deficiencies in both sexes. Salt wasting can lead to dehydration and hypotension in the first few weeks of life. Affected males had undervirilization manifesting as a micropenis to severe perineoscrotal hypospadias. Females show normal or mildly virilized external genitalia (mild clitoromegaly, labial fusion) due to dehydroepiandrosterone (DHEA) accumulation and conversion to androgens by the normal HSD3B1.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCongenital adrenal hyperplasia due to 3-beta-hydroxysteroid dehydrogenase deficiencyCAH due to 3-beta-hydroxysteroid dehydrogenase deficiency
frHyperplasie congénitale des surrénales par déficit en 3-bêta-hydroxystéroïde déshydrogénaseHCS par déficit en 3-bêta-hydroxystéroïde déshydrogénase
deNebennierenhyperplasie, kongenitale, durch 3-beta-Hydroxysteroid-Dehydrogenase-MangelCAH durch 3-beta-Hydroxysteroid-Dehydrogenase-Mangel · Kongenitale adrenale Hyperplasie durch 3-beta-Hydroxysteroid-Dehydrogenase-Mangel
esHiperplasia suprarrenal congénita por deficiencia de 3-beta-hidroxiesteroide deshidrogenasaCAH por deficiencia de 3-beta-hidroxiesteroide deshidrogenasa
itIperplasia congenita del surrene da deficit di 3-beta-idrossisteroido deidrogenasiCAH da deficit di 3-beta-idrossisteroido deidrogenasi
nlCongenitale adrenale hyperplasie door deficiëntie van 3-bèta-hydroxysteroïdedehydrogenaseCAH door deficiëntie van 3-bèta-hydroxysteroïdedehydrogenase · Congenitale bijnierhyperplasie door deficiëntie van 3-bèta-hydroxysteroïdedehydrogenase
ptHiperplasia supra-renal congénita por deficiência de 3-beta-hidroxi-esteróide desidrogenaseCAH por deficiência de 3-beta-hidroxi-esteróide desidrogenase
plWrodzony przerost nadnerczy spowodowany niedoborem dehydrogenazy 3-beta-hydroksysteroidowejCAH z powodu niedoboru dehydrogenazy 3-beta-hydroksysteroidowej
csVrozená adrenální hyperplázie způsobená deficitem 3-beta-hydroxysteroid dehydrogenázyCAH způsobená deficitem 3-beta-hydroxysteroid dehydrogenázy
ukВроджена гіперплазія надниркових залоз внаслідок дефіциту 3-бета-гідроксистероїддегідрогеназиАГС внаслідок дефіциту 3-бета-гідроксистероїддегідрогенази
zh3β-羟基类固醇脱氢酶缺乏所致先天性肾上腺皮质增生症3β-羟基类固醇脱氢酶缺乏所致先天性肾上腺皮质增生
tr3-beta-hidroksisteroid dehidrojenaz eksikliğine bağlı doğumsal adrenal hiperplazi3-beta-hidroksisteroid dehidrojenaz eksikliğine bağlı CAH

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM201810Evalidated
ICD-10E25.0NTBTattributedvalidated
ICD-115A71.01NTBTindexvalidated
MONDO0008727Evalidated
MeSHC538236Evalidated
UMLSC0342471Evalidated
GARD9152Evalidated

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 (3):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
HSD3B2Disease-causing germline mutation(s) inAssessedHGNC:5218ENSG000002038596138901p12hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 2
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families68 casesWorldwideCase(s)Validated12428206[PMID]_15671104[PMID]_17496421[PMID]_15448795[PMID]_15559435[PMID]
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

36 annotations · validated 2021-04-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0008258Congenital adrenal hyperplasia
Frequent (79-30%)
HP:0500022Abnormal serum dehydroepiandrosterone level
HP:0011749Adrenocorticotropic hormone excess
HP:0000061Ambiguous genitalia, female
HP:0000033Ambiguous genitalia, male
HP:0008665Clitoral hypertrophy
HP:0004319Decreased circulating aldosterone level
HP:0008163Decreased circulating cortisol level
HP:0012041Decreased fertility in males
HP:0040171Decreased serum testosterone concentration
HP:0001944Dehydration
HP:0031213Elevated circulating 17-hydroxyprogesterone
HP:0000771Gynecomastia
HP:0002153Hyperkalemia
HP:0000953Hyperpigmentation of the skin
HP:0002902Hyponatremia
HP:0000047Hypospadias
HP:0002615Hypotension
HP:0025380Increased circulating androstenedione concentration
HP:0000848Increased circulating renin level
HP:0030088Increased serum testosterone level
HP:0001998Neonatal hypoglycemia
HP:0000127Renal salt wasting
HP:0002013Vomiting
Occasional (29-5%)
HP:0012881Abnormality of the labia majora
HP:0000027Azoospermia
HP:0000028Cryptorchidism
HP:0008734Decreased testicular size
HP:0001508Failure to thrive
HP:0008730Female external genitalia in individual with 46,XY karyotype
HP:0001263Global developmental delay
HP:0001007Hirsutism
HP:0000037Male pseudohermaphroditism
HP:0012768Neonatal asphyxia
HP:0000808Penoscrotal hypospadias
HP:0012412Premature adrenarche

Run the differential on the 1 obligate / very frequent terms

Annotation source: 31950145[PMID]_26290012[PMID]_33415088[PMID]

7

Sources for this card