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Syndrome reference sheet
Generated 13 Oct 2026
Endocrinology · Endocrinology / Bone and mineral disorders Mazabraud syndrome
Also known as: Fibrous dysplasia with intramuscular myxomas
Fibrous dysplasia associated with intramuscular myxomas.
- Medical specialty
- Endocrinology
- Subspecialty
- Endocrinology / Bone and mineral disorders
- Sex & age distribution
- Male: affected; Female: affected; Children: rare
- Gene(s) involved
- GNAS
Etiology & mechanism
Somatic GNAS activating variants.
Gene(s) involved (1)
GNAS
Symptoms & signs (4)
bone painfracturesleg length discrepancysoft tissue mass