raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:562

McCune-Albright syndrome

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Childhood
Status
active

A rare mosaic syndrome characterized by the combination of two or more of the following: fibrous dysplasia of bone (FD), hyperpigmented macules, and hyperfunctioning endocrinopathies (precocious puberty, hyperthyroidism, growth hormone excess, endogenous Cushing syndrome).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMcCune-Albright syndrome
frSyndrome de McCune-Albright
deMcCune-Albright-Syndrom
esSíndrome de McCune-Albright
itSindrome di McCune-AlbrightPubertà femminile precoce indipendente dalle gonadotropine
nlSyndroom van McCune-AlbrightGonadotropine-onafhankelijke tot vrouwen beperkte seksuele precociteit
ptSíndrome McCune-AlbrightPuberdade precoce limitada ao sexo feminino independente da gonadotrofina
plZespół McCune i AlbrightaNiezależne od gonadotropin przedwczesne dojrzewanie płciowe kobiet
csMcCuneův-Albrightův syndromGonadotropin independentní předčasná puberta dívek · McCune-Albrightův syndrom
ukСиндром МакКьюна-ОлбрайтаГонадотропін-незалежне жіноче передчасне статеве дозрівання
zhMcCune-Albright综合征促性腺激素非依赖性女性性早熟
trMcCune-Albright sendromuGonadotropin-kadından bağımsız-sınırlı cinsel erken gelişmişliği

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM174800Evalidated
ICD-10Q78.1NTBTinclusionvalidated
ICD-11FB80.0NTBTindexvalidated
MONDO0018919Evalidated
UMLSC0242292Evalidated
GARD6995Evalidated
MedDRA10052032Evalidated

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 (8):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
GNASDisease-causing somatic mutation(s) inAssessedHGNC:4392ENSG0000008746013932020q13.32GNAS complex locus1594625[PMID]_1944469[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 1 000 0000.55 / 100 000EuropeValue and classValidated18489744[PMID]_[EXPERT]

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

53 annotations · validated 2020-03-24
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0031072Abnormal endocrine physiology
HP:0005605Large cafe-au-lait macules with irregular margins
HP:0000138Ovarian cyst
HP:0000826Precocious puberty
Frequent (79-30%)
HP:0000035Abnormal testis morphology
HP:0011821Abnormality of facial skeleton
HP:0002823Abnormality of femur morphology
HP:0002693Abnormality of the skull base
HP:0000820Abnormality of the thyroid gland
HP:0005616Accelerated skeletal maturation
HP:0010734Fibrous dysplasia of the bones
HP:0001507Growth abnormality
HP:0000836Hyperthyroidism
HP:0030088Increased serum testosterone level
HP:0000053Macroorchidism
HP:0010736Monostotic fibrous dysplasia
HP:0000124Renal tubular dysfunction
HP:0002650Scoliosis
Occasional (29-5%)
HP:0000271Abnormality of the face
HP:0006719Benign gastrointestinal tract tumors
HP:0020110Bone fracture
HP:0002653Bone pain
HP:0000144Decreased fertility
HP:0000689Dental malocclusion
HP:0000845Elevated circulating growth hormone concentration
HP:0000324Facial asymmetry
HP:0002020Gastroesophageal reflux
HP:0000853Goiter
HP:0000365Hearing impairment
HP:0012028Hepatocellular adenoma
HP:0010791Hyperplasia of the Leydig cells
HP:0008768Inappropriate sexual behavior
HP:0000870Increased circulating prolactin concentration
HP:0000858Irregular menstruation
HP:0001742Nasal congestion
HP:0002749Osteomalacia
HP:0001733Pancreatitis
HP:0003401Paresthesia
HP:0010735Polyostotic fibrous dysplasia
HP:0002757Recurrent fractures
HP:0000117Renal phosphate wasting
Very rare (<4-1%)
HP:0012063Aneurysmal bone cyst
HP:0005528Bone marrow hypocellularity
HP:0003002Breast carcinoma
HP:0001396Cholestasis
HP:0030428Cutaneous myxoma
HP:0012115Hepatitis
HP:0003109Hyperphosphaturia
HP:0002148Hypophosphatemia
HP:0003118Increased circulating cortisol level
HP:0001876Pancytopenia
HP:0001579Primary hypercortisolism
HP:0000572Visual loss

Run the differential on the 4 obligate / very frequent terms

Annotation source: 26209174[PMID]_25719192[PMID]

7

Sources for this card