Mazabraud syndromeAn extremely rare (55 in the world literature) syndrome characterised by polyostotic fibrous dysplasia with an increased risk of osseous malignant transformation, occurring during growth periods and multiple intramuscular myxomas (adulthood), usually involving the same anatomic region.
Most cases are asymptomatic; other cases present with pain, skeletal deformities and fractures. It is more common in women (2:1 ratio), presenting in middle age (mean age 46).
Aneurysmal bone cyst, chondrosarcoma, enchondroma, low-grade central osteosarcoma, nonossifying fibroma, osteofibrous dysplasia, simple bone cyst.
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