raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:209902

Hypercholesterolemia due to cholesterol 7alpha-hydroxylase deficiency

Type
Disease
Group
Disorder
Inheritance
Semi-dominant
Age of onset
Adult
Status
active

A rare sterol metabolism disorder characterized by increased LDL cholesterol serum levels (which are resistant to treatment with 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors), hypertriglyceridemia, and decreased rate of bile acid excretion, resulting from cholesterol 7alpha-hydroxylase deficiency. Premature gallstone disease and/or premature coronary and peripheral vascular disease are frequently associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHypercholesterolemia due to cholesterol 7alpha-hydroxylase deficiency
frHypercholestérolémie par déficit en cholesterol 7alpha-hydroxylase
deHypercholesterinämie durch Cholesterol 7-alpha-Hydroxylase-Mangel
esHipercolesterolemia por deficiencia de colesterol 7-alfa-hidroxilasa
itIpercolesterolemia da deficit di colesterolo 7alfa-idrossilasi
nlHypercholesterolemie door deficiëntie van cholesterol-7-alfa-hydroxylase
ptHipercolesterolemia por deficiência da colesterol 7alfa-hidroxilase
plHipercholesterolemia z powodu niedoboru 7alfa-hydroksylazy cholesterolu
csHypercholesterolémie způsobená deficitem cholesterol 7alfa-hydroxylázy
ukГіперхолестеринемія внаслідок дефіциту холестерол 7-альфа-гідроксилази
zh胆固醇7α-羟化酶缺陷所致高胆固醇血症
trKolesterol 7 alfa-hidroksilaz eksikliğine bağlı hiperkolesterolemi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10E78.0NTBTattributedvalidated
ICD-115C80.00NTBTattributedvalidated
MONDO0016203Evalidated
UMLSC4751204Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CYP7A1Disease-causing germline mutation(s) inAssessedHGNC:2651ENSG000001679101184558q12.1cytochrome P450 family 7 subfamily A member 112093894[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families24 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

15 annotations · validated 2016-03-02
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0006573Acute hepatic steatosis
HP:0001396Cholestasis
HP:0011980Cholesterol gallstones
HP:0001397Hepatic steatosis
HP:0012115Hepatitis
HP:0003124Hypercholesterolemia
HP:0002155Hypertriglyceridemia
HP:0003141Increased LDL cholesterol concentration
HP:0001403Macrovesicular hepatic steatosis
Frequent (79-30%)
HP:0008372Abnormality of vitamin A metabolism
HP:0100514Abnormality of vitamin E metabolism
HP:0004943Accelerated atherosclerosis
HP:0012397Aortic atherosclerosis
HP:0001677Coronaryartery atherosclerosis
HP:0001513Obesity

Run the differential on the 9 obligate / very frequent terms

Annotation source: 11967256[PMID]_2384150[PMID]_12093894[PMID]_12093884[PMID]

7

Sources for this card