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Syndrome reference sheet
Generated 13 Oct 2026
Endocrinology · Endocrinology / Pediatric endocrinology

McCune–Albright syndrome

Also known as: Polyostotic fibrous dysplasia with endocrinopathy

Triad of fibrous dysplasia, café-au-lait macules and autonomous endocrine hyperfunction.

Medical specialty
Endocrinology
Subspecialty
Endocrinology / Pediatric endocrinology
Sex & age distribution
Male: affected, less often; Female: affected, more common; Children: yes, early childhood
Gene(s) involved
GNAS

Etiology & mechanism

Somatic activating GNAS mosaic variant.

Gene(s) involved (1)

GNAS

Symptoms & signs (10)

bone paincafé-au-lait maculescushing syndromefibrous dysplasiafracturesgrowth hormone excesshyperthyroidismhypophosphatemic ricketsprecocious pubertyvaginal bleeding
SyndromeScope — educational reference. Content is model-generated and not clinically verified; always confirm against OMIM, Orphanet and GeneReviews before clinical use.